My freshwater pump has been cycling every few seconds, but I had no leaks anywhere. So I opened up my pump to clean out the trapped debris (fixed the cycling issue) and was amazed at the internal mechanics. I thought they were just one plunger with a check valve on each side. What cool engineering! Thanks for this video!
Awww man awesome video, it help me a lot and now i understand how that pump works. It's very nice that you showed how the pump works dismantled into parts, thanks to which you can see what effect is created inside.
Excellent video. Not too long. Each process very well explained. I see that you have taken pains to assemble and disassemble in order to explain each and every detail. Thanks very much bro.
Many thanks - Helped me troubleshooting mine which stopped working after very little use (filtering distillates) and I feared the rubber had perished, but it seems I gunked the valves! All working now, thanks!
Thank you, that was a great explanation! Pump in my undersink RO has just failed (leaking) and at least now I can see how it was *supposed* to work. I think diaphragm must have split :-( As you say, the motors are quite handy without the pump head, so I think I'll just replace it and score a useful DC motor. You never know when it might come in handy!
Cool video! I had a summer job assembling diaphragm pumps, and although the concept is exactly the same (piston opening and closing a chamber with 2 valves) the manufacturing process was much different. We also made pumps with 5 chambers "taking turns" which further stabilizes the flow.
@@tsbrownie mostly inkjet printers, but also for biochem labs and in coffee machines. Seeing the manufacturing process behind the things we use in daily life is really fascinating! I appreciate the video 👍
i've been looking for more information on diaphragm pumps , can you please share what manufacturer did you work for or where can I look for more explanation.
Great video. I have this kind of pump in my motorhome and want to prepare my motorhome for the winter. How can I empty the pump for water so it will not freeze during the cold winter in Norway ? Is it possible to use a vacuum cleaner to suck or blow (for example from the bathroom). Will this completely emptying the pump ? Or is the best way to run the pump for a little time with no water in the system ? It is the pump that is the issue here, not the plumbing system.
In theory you could run it with an open input line for a while. Or blow air in the input while running it. It's probably safest to loosen the screws and open the chamber a crack. The orientation can make a difference how much water is left inside. Or you could clear it by running alcohol through it! 😉
Was hoping for some troubleshooting tips. Specifically, what should be the intake pressure? You said output should be 30 -40 lbs. However, to test in field means to flood the host structure (in my case a camper) with water. There is a -t-junction on the input side with siphon hose (for winterizing -one side of the T is to the fresh water, the other the siphon hose. If I test the suction pressure there, what should it be?
Hi sir, I have a 33 series eco worthy 110v diaphragm pump which began leaking. Am I able to use a shurflo replacement for it, or where would I be able to find the replacement?
No, they are not good air pumps. Wattage depends on the model. Some are 12 volt, others 24. Some are 1 amp, 2 amp, 2.5 amp .... just multiply the volts times the amps of the model you are interested in.
Bonjour SVP pour les pompes booster de 50 à 600 GPD est ce que les têtes de pompes (diaphragme)sont les mêmes cad interchangeables et merci Hello please for booster pumps from 50 to 600 GPD are the pump heads (diaphragm) the same interchangeable cad and thank you
@@catalinseverineanu2550 I can't say for sure. Not sure how much pressure the screws are under. The screws might be stainless which resists many types of acid. I have seen these used in college chemistry labs to circulate caustic chemicals, but I don't know what type or how strong.
@@tsbrownie Thanks. Yes, maybe plastic screws is not a good idea. Some resin sealer or powder coating or nothing at all on those three screws are better ideas. I will try.
@@tsbrownie I found a good easy to apply solution to protect those small steel screws against chemical corrosion: powder coating using a fluid bed. Here are two examples: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-KRWMyLXN3zQ.html and ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-Gh9WWEmkEUc.html
@@tsbrownie thank u for your advice my friend , and I know diving thats why i think tubes are a burden for recreational low depth diving. I ask you because thats the only diaphragm pump oil less i see suitable if pressure goe up to 35 lb/in and 15 l/min air the one youshow is 4.5 l/min but the model I see in the market goes up to 15 Water
@@lacuentadevideos Sounds like an interesting project. Something beyond me! Have you seen the "Air Buddy"? It's an electric diving air pump. (They used to make a gasoline powered one years ago.) Bauer makes oilless air pumps (but they are expensive). And there are "medical air pumps".
That's a good question. I've had 4 pumps now, and in every case it's the rubber valves that rot first, followed by the "pistons." If the rubber parts were of silicone rubber, I'd guess the things would last 10x longer. I've tried to find replacement parts, but of course they have no financial incentive to sell those. Plus none of the pump brands I've seen have interchangeable pump parts, although the motors seem to be more standardized (but I've never seen a motor fail first).
@@tsbrownie That's unfortunate about the rubber deterioration but makes sense. A "service kit" of new rubber valves could be sold for $5 while still making a huge profit, but I'm sure the manufacturers make bigger $$$ by selling whole units. Sad state of our throw-away society I suppose. Appreciate the input, and thanks for the video!
@@VanwithTim In Europe there is a big "right to repair" movement going on. We need that also. BTW I have seen a couple of your vids, about an AC and solar for your van.
@@VanwithTim I actually worked for a company that would in fact sell existing customers replacement part kits that mostly included the rubber bits that fail first. I put together over 1000 of them.
@@srather7551 Interesting. They are mostly used in RO water filters and I've seen a chemistry department use them to circulate chemicals. So now I know of another use for them. Thank you.
I have a friend who used one to pump water over a waterfall in his fish pond. I don't know if it will pump air well. Probably better to use an air pump.
@@sacdesaram There are many types. Small ones use bellows. Mid-size are often piston type like car-tire pumps that will run long term (car tire pumps won't). Big air pumps are like turbines. There are more types and you can search on google "different types of air pumps" and see most.
I have had very good results with them. They fail when the rubber parts break down. The motors far outlast the pump stage. I've seen them used in a college chemistry lab to circulate fluids.
