RV Gadget Review - Rainwave Digital Water Flow Meter

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A while back a Love Your RV! reader named Jim clued me into an inexpensive device from a company called Rainwave. The gadget measures the flow of water displaying the volume in gallons or liters.
Blog post link - www.loveyourrv.com/rv-tank-flu...
He uses it when flushing his waste tank so that he doesn't overflow it. Pretty cool little tip. So, I picked up one from Amazon to give it a try. In this video, I show the Rainwave water flow meter in action and talk about a few other applications for it around the RV.
Link to Rainwave on Amazon - amzn.to/2HYtfOg
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Опубликовано:

23 мар 2018

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Комментарии : 111

@darrellwampler6473 6 лет назад

That's a cool gadget! You could hook it to the water inlet when at a park to see how much water you use in the shower to establish how long your water will last in the desert. Cool

@RVHabit 6 лет назад

Cool gadget. I like the idea of connecting that the the demand side of the pump to know exactly what I have used from my fresh water tank. Thumbs up, Lou.

@JimCouillard 6 лет назад

Right on again, Ray. That meter really came in handy when I was boondocking with access to a spigot via my water Bandit! Knowing exactly how much water I put in My freshwater tank allowed for quick and efficient water usage.

@R9m54LZX Год назад

Thanks for this demo ... I had to replace my battery and this really helped!

@toddramsay977 6 лет назад

Great idea about using it for black tank flush fill. Going to pick a couple of those up. Thanks for sharing.

@DnSAdventures 6 лет назад

Looks like a cool little tool to add to the rig. Thanks for sharing Ray! - Shane

@ZeebNinja 6 лет назад

This is a great little product! I can now see how much water I am pushing into the black tank for rinsing/flushing and I can know how much water I am adding to my water tank without having to run back and forth into the RV to see the water level. If I am at 1/3 or 2/3 at the inside meter, I then know how much I should add through the water bay. No more guessing, this little item has already saved me a lot of time over the past week that I have had it. Thank you for the video.

@joemercier 6 лет назад

Been using these for years. Keep track of my garden watering

@cyndifoore7743 6 лет назад

Nifty device! Thanks Ray.

@budlamy3870 3 года назад

It works perfect for flushing your black tank! Used it earlier today to flush mine by myself, all you need to know is how many gallons / liters it holds. Now the wife doesn’t have to be looking down the toilet with a flashlight and bang on the wall when the “shitters full”!

@4blake 6 лет назад

Great idea and review. May just have to get one.

@harleyd500 6 лет назад

Been using the same one for a few months now. I find it handy when filling the tank to guesstimate how much time I have do do other stuff before checking back in to not waste water overflowing.

@garycampbell8663 6 лет назад

Good idea Ray

@brightondude9327 6 лет назад

I'm glad it does litres. Here in the UK when I watch the US RV channels I have to open up my conversion application so I know what they are talking about. The US gallon isn't even the same as the old imperial gallon we used when I was a child.

@rjahn3000 6 лет назад

I had one made by Rain Bird lasted a few months was great for filling the fresh tank. safe travels.

@alpic1541 6 лет назад

Cool gadget....going to have to get one of those

@PDX53 6 лет назад

I bought one after watching a video where a guy mentioned overfilling his black tank. I also bought a mechanical water timer so if you know how long it takes to fill a tank you can set the timer & walk away. I haven't even picked up my trailer yet - hopefully next Thursday. It's a highly customized 12' x 7' mini toy hauler built by Dunesport Toy Haulers in Mesa, AZ. They're the only company I found who'd build exactly what I want.

@673Piper 2 года назад

Just purchased one. $32 on Amazon now. But, will be handy to have.

@hellkatkitty 6 лет назад

yep, will add that to my amazon list!

@ScotWalt858 6 лет назад

Looks like something that come in handy!

@Edwardsjourney 6 лет назад

Great idea !

@PhotoAlbert 6 лет назад

I don't know Ray, I'm not feeling the love for this gadget, but that's just me! Terrific demonstration as always!

@LoveYourRV 6 лет назад

No problem. :) Thanks!

@WindersRanger 6 лет назад

Handy little gadget

@transmitterguy478 5 лет назад

I've got them on my washer cold and hot water inlet so I have an idea of how much water is used for each cycle. They work great.

@pj9731 6 лет назад

Great Review Ray, I just ordered one from Amazon. I want to measure my gallons per minute & keep up with the total of gallons used at the house when I sterilize my fresh water tank. I can't trust the tank level lights in the RV.

@temujinkhan6326 10 месяцев назад

was setting up a fish pond and i was thinking how neat it would be to develop a meter for the faucet but looks like I am late once again

@projet2907 6 лет назад

Thanks for the video, I have a black tank flush system. I want to use it to put back 1 gallon or so of water back in, just before i put the happy camper or Borax potion. I often forget to close the black tank lever and lose my potions, 😹😂 this way I will think of it and won't have to hold the toilet pedal and try to figure out how much water is falling in while the smell is coming up! Also sometimes between 2 spots I want to put an exact amount of water in the Fresh water. Of course going in and out of the trailer to check is out! Thank you!!

@rvnormburgess 6 лет назад

Ray I bought one of those last year so I could tell how many gallons of water I am putting on board. works great

@jerrydensmore2887 6 лет назад

I have one that I bought on Ebay for around six bucks. No name on it but looks and works exactly the same. I bought mine so I could know how many gallons I was putting back in the tanks. Say ten for fresh during travel in between stops and at least five gallons back in the black tank after cleaning. Nothing worse than using the black tank with no water in it. Thanks for sharing Ray.

@rvnormburgess 6 лет назад

Yes I use mine to just put 10 gallons for travel.

@AKRichardM 6 лет назад

Cool! I think I need to pick one of those up. Even though our fresh water tank says 45 gal, it seems to run out really fast.

@gymsreviews8155 6 лет назад

That's a cool little gadget. You could hook it up to your filter system , so you would know when to change your filter?

@joecool509 6 лет назад

great for me. I have a 100gall water tank and I don't need that much so I could put a known amount in for a weekend.

@joecool509 6 лет назад

corey the nomadic maintenance guy 860. Yup. Toyhaulers have extra large tanks for some reason. Maybe to wash them off

@AlaskaErik 6 лет назад

Personally, I would never use the same anything for black water flush vs potable water hookup or fill. That includes this device. I would have one for black water flush and one for my potable water and I would have the two units clearly marked so there was no doubt as to which is which.

@LoveYourRV 6 лет назад

Luckily my black water flush has a check valve so the water only flows one way, it also sits about 3 feet above the black tank.

@BJHermsen 6 лет назад

Love mine. My fresh water fill is fussy. If I go just to far it will siphon 5 to 10 gallons out through the overflow. With the meter I can quit with a quart to go and maximize my available water

@LoveYourRV 6 лет назад

Nice! :)

@kong3 6 лет назад

I have an all metal/brass analog unit for my toy hauler. My hauler can carry 120 gallons of water, but I don't fill it all the way for just a weekend for wife n I. So this helps me control water level. I can also see that the water is actually flowing in. Also if I'm pulling 2 or 3 days in a row I don't fill the water all the way unless it will be hard filling when I arrive at destination. Has turned out to be a must have for us.

@LoveYourRV 6 лет назад

Cool. :)

@gordoncindy9386 6 лет назад

I have read other people say, not here, that you should always fill your freshwater tank to capacity so you don't get any stability problems when driving with water sloshing around in the tank. I can't say I've ever experienced any problem, have you?

@LoveYourRV 6 лет назад

Handling wise I can't feel the difference and my tank is at the far end of the fifth wheel. The only time I feel the difference is pulling a steep grade, a little harder with a full tank versus empty.

@gordoncindy9386 6 лет назад

Thanks. That's been my experience also... funny how some of these ideas go around.

@anastasiabeaverhausen2996 4 года назад

I want one of these to measure how much water is going through my filtration system so I KNOW when to change filters.

@joecool509 6 лет назад

may last longer if you dont hold it under pressure. maybe put an on off valve up stream

@otagophysio 7 месяцев назад

hi my meter is measuring in the reverse direction of flow and has stopped measuring the direction of flow as shown on the meter. Anything you can reckon why it is so?

@Pack.Leader 6 лет назад

I want to see the video where you use that to flush out your black tank.

@LoveYourRV 6 лет назад

Here is one where I had to repair a clogged nozzle on the black tank flush system :) www.loveyourrv.com/oh-crap-rv-poop-tank-flusher-broken/

@EverythingRVbyPat 6 лет назад

Ray, On the amazon description it says you can switch back and forth between Gallons and Liters. Thought that was a pretty cool tip. You only mentioned it counting in Gallons but I'd imagine that being Canadian you might like to also use the Liters setting too. However you didn't mention it being able to read both. Just wondering if you experienced that feature. Thanks again for the great little video. Pat

@LoveYourRV 6 лет назад

umm.. did you watch the video? :) - ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-50eSa1GoIAA.html

@EverythingRVbyPat 6 лет назад

I guess I missed that part... I got all excited about it and went directly to Amazon... LOL... But I ordered one anyway. Sometimes I get all excited about something and quit paying attention to the other part. Palm slap to the forehead for me... Great gadget and I've already ordered it.

@ucmytank1933 6 лет назад

Apologize if already asked but when the water is turned of and then later turned back on does it continue the measure from where you left off at 24.9 liters or does it reset back to zero? I want to know how much water I used during a day long project. Thank you Canada is beautiful.

@LoveYourRV 6 лет назад

Long-Term memory: If there is no water flow for about half an hour, the visual display disappears, but the volume values are remembered by the electronics. When flow resumes, the display comes on again, so long-term total volume recordings are possible.

@ferrelx 6 лет назад

i have one also..i got it to verify what my real world water capacity in my 99 chieftain 35c f53 chassis..supposedly 98 gallons us when water heater and water lines are charged..i ended up getting 92 gallons in..could you let me know on how accurate you think yours is ? thanks :)

@LoveYourRV 6 лет назад

Yes, I know my fresh is 60 gallon so will drain and give it a check.

@settinger14 3 года назад

Hey Ray - it has been a while since you posted this video. How long did the device last, and how accurate was it for you? There are so many versions of this plastic meter available now on Amazon, and all of them have about the same reviews, with many people saying they break easily or arrived broken…

@LoveYourRV 3 года назад

Still working, I wouldn't call it dead accurate but close enough, I'm not doing a science experiment. :) Here is a time I used it last summer to fill my 30-gallon water bladder - ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-o7GQ_E40DcM.html Cheers, Ray

@saifullahwahla2465 4 года назад

I want to buy but in Pakistan this is not available so you can tell me that how can I get?

@MickeyCloninger 6 лет назад

Ray, how do I make sure my Amazon purchases are always credited to your affiliate account ?

@LoveYourRV 6 лет назад

You can go to my Amazon page - www.amazon.com/shop/loveyourrv I have a selection of products I use and have reviewed or you can use the regular Amazon search or departments to find what you want. I should get credit. Thanks! Ray

@otagophysio Год назад

Hi can you use it to measure petrol diesel by calibrating it for these fluids?

@LoveYourRV Год назад

I don't see any calibration method and being built cheap plastic I fear diesel may damaged it.

@CommunSpace 4 года назад

Hi Ray , I'm trying to use your links to buy from amazon , but it always links me to amazon.com. It isn't always convenient to me to buy from Us , is there any option for amazon.ca? Thanks

@LoveYourRV 4 года назад

Thanks Martin, here is my .CA portal www.amazon.ca/shop/loveyourrv I try and list the stuff I have reviewed if its on Amazon.ca but there is also a search function. Cheers! Ray

@n0aye4 5 лет назад

I bought one of these from Amazon. Tried filling a 1 gallon jug two times as a test. One test read 1.3 gallons and the other read 2.1 gallons. How accurate are these supposed to be?

@LoveYourRV 5 лет назад

Mine's not scientifically accurate but a lot better than your results. I tested it on my 30-gallon water bladder and 60-gallon freshwater tank and it was pretty close. Maybe you got a defective one. They are cheaply made plastic out of China so I imagine quality control isn't great.

@paolatellez5154 4 года назад

hi Ray, I bought one a week ago, but I see It doesn´t measure automatically, I put it at the exit of a water tank to measure the onsumption of a commercial premises. If it's in baterry save mode, ando there is flow, does it turn on automatically only to start reading? or only when I turn it on manually it starts to measure?... I asked the guy sold to me, buy he doesn´t know even how it works... May be if you had used it for a long, you may have the answer... Regards

@LoveYourRV 4 года назад

Pretty sure it does manual or automatically when it senses flow, I'll check. I don't really use it for long periods. Top digit is recent amount and bottom is accumulated amount. Here is a different brand manual, but same instructions - www.p3international.com/manuals/p0550_manual.pdf

@LoveYourRV 4 года назад

Yup, is wakes up from sleep mode and continues the count.

@sailingsolar 6 лет назад

I wonder how accurate it is at different flow rates. Did you test for that? It's important to know if used to measure variable and intermittent water usages. As installed on your RV water pump to measure usage over time.

@LoveYourRV 6 лет назад

No, haven't had a chance, I just got it but being it's a spinning impeller in there I would imagine it should stay pretty accurate, just spins faster and slower depending on the flow rate and the microprocessor chip figures it out.

@paragbathe9146 4 года назад

I need to order this how can I order this one?

@LoveYourRV 4 года назад

Here it is on Amazon - amzn.to/2DlZ8Qv

@robinmccune3438 5 лет назад

We just got one of these but how do you turn it off?

@LoveYourRV 5 лет назад

The display turns off after a while on its own, I think about a half hour but remembers gallons used. Being a liquid crystal display like the old wristwatches it doesn't use much power.

@maxsmith4400 4 года назад

Hi mate,Can i ask how you turn it on and off.Thanks

@LoveYourRV 4 года назад

Just push any button to turn on and it turns off by itself

@crawfordoverton3299 6 лет назад

e bay 16 dollars i got mine for

@Yemeni.Egyptian 5 лет назад

where i can get it in yemen ?

@snubbedpeer 6 лет назад

It didn't seem to have an on/off switch but maybe it doesn't use much power?

@LoveYourRV 6 лет назад

It goes to sleep after a few minutes and wakes up when it senses water flow or button push. I doubt it uses much power at all, just an LCD display no backlight and a small chip I imagine. Guess I could unscrew the battery when not using it for long periods. Cheers, Ray

@johnwanous1916 3 года назад

will thiswork as a gravity flow meter fron a 400 gal tank

@LoveYourRV 3 года назад

It should work. The passing water turns a small propeller inside the meter. So any passing water should work

@johnwanous1916 3 года назад

@@LoveYourRV thanx

@segelnnatur2022 2 года назад

Great idea but really should be all metal. I've had several and they all break. Do you know a metal version of this available anywhere? Unless you're always extremely careful these plastic ones snap so easily. Basically you can't mount it to the house wall spigot due to the weight of the hose or if someone accidentally pulls on the hose a tiny bit, they break. And they aren't cheap, now about US $20 dollars and even more. The plastic ones shouldn't cost more than $5 USA bucks.

@LoveYourRV 2 года назад

I haven't come across any comparable metal ones but recently bought a little better plastic one that comes with quick connects amzn.to/3IMpV9q For my RVing application then work fine. Cheers, Ray

@davidquintoantonio952 4 года назад

Hi. this device measure also in liters?

@LoveYourRV 4 года назад

Yes, guess you didn't watch the part of the video where I demoed liters. ;) - ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-50eSa1GoIAA.html

@ponyboyack00 3 года назад

How do you turn it off

@LoveYourRV 3 года назад

If no water flow it auto shuts off. Wakes up again when flow starts.

@jkbkasim4909 3 года назад

We need 5 pieces . Any shipment in jeddah

@LoveYourRV 3 года назад

You can find them to buy on Amazon - amzn.to/3rXDEAG

@josephmyers1492 Год назад

How did you switch to "UT"

@LoveYourRV Год назад

What is "UT"?

@josephmyers1492 Год назад

@@LoveYourRV Sorry, how did you switch to "lit". Looked like ut at first glance.

@LoveYourRV Год назад

@@josephmyers1492 Here is a manual with the instructions. www.p3international.com/manuals/p0550_manual.pdf Cheers, Ray

@sajaggupta2101 Год назад

How do you switch it off

@LoveYourRV Год назад

It goes turns off after a while of no flow and turns back on when it senses water flow. Power use is very minimal since its a liquid crystal screen. Much like a digital watch or calculator.

@sajaggupta2101 Год назад

@@LoveYourRV i observed it for 5 min but was still showing numbers on the display. May be it needs more time. I will time it

@LoveYourRV Год назад

@@sajaggupta2101 Here is a manual I found online of the same meter under a different name. Battery save mode - says it shuts off after 30 minutes www.p3international.com/manuals/p0550_manual.pdf

@sajaggupta2101 Год назад

@@LoveYourRV good job. This much time looks quite a lot. But as you said it won't eat much battery than its fine.

@sajaggupta2101 Год назад

Hi the rainwave digital reading is not working with flow? What is the solution?