Step by Step Sanitation System | DIY Cold Plunge 

Thank you so much! I really appreciate the support 🙏

thank you!

Thanks Austin!

I appreciate that! Thanks for dropping in 🙏

You bet!

That's awesome! Happy to share what I'm learning. Enjoy the cold 👍

Exactly my plan as well!!

@@tbaylo4034 love it!

🙏

thanks Matt!

Thanks!

I just found your instagram feed and saw that you included that on one of your recent builds! That’s awesome, thanks again for sharing all this going to start gathering materials to build my own!

​@@DIYColdPlungePVC union slip joints at home Depot $7.11 each, the plain PVC fittings are about .80 cents. I couldn't justify the price even though it's a good idea.

In this instance, the venturi is the "balancing valve." This setup keeps the plumbing system running the most efficiently - filtering, creating the vacuum/suction and minimizing loss of total overall flow in your plunge.

Hi! Thank you!

www.menards.com/main/plumbing/hoses-tubing/pool-spa-tubing/sioux-chief-3-4-id-x-10-l-flexible-spa-hose/900-16300w00101/p-1470660864012-c-8582.htm?tid=ae3e06b9-26c4-4402-8c30-44ccbeb5ac81&ipos=4&exp=false

I dont.. what would the benefit be?

I'll post a video soon!

That should work, there's nothing special about having the filter below, this is just the most space-conscious setup if you are starting from scratch. I would put the ozone first as it needs a certain amount of PSI to create the suction 👍

Sure thing - Venturi Injector Tutorial for Ozone Sanitation | DIY Cold Plunge ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE--vN8KllHULU.html

diycoldplunge.com/collections/all-products/products/flexible-pvc-spa-hose

Yep! YOu can totally do that.

You need to make sure water can freely flow to it. These pumps push, they don't pull/create their own suction.

It does not. It relies on the suction from the pump & venturi

Hey Bob! You should see bubbles at the inlet of your tub if the system is creating suction.

This goes after the pump. Hopefully this video can help ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-RELc6xNzfLM.htmlsi=ibLx6V7LqQXDEMJT

I have another video that talks through some of it, but you don't want to restrict water flow that much. And as soon as the filtered water hits the tub, it's no longer "filtered." You'd need to filter into a new tank for all the water to get filtered in one shot.

thank you! yes, that should be just fine

It's more to maximize flow rate and performance.

Did you order the 3/4" venturi? I'm guessing that would be the issue. The ozone generator hasn't changed. I do offer and upgraded venturi & filtration plan on my site diycoldplunge.com/

No, it would restrict flow too much. Your tank will turn over many many times throughout the day so your water will be treated and filtered many times over.

I've got several shorts and other test videos on my channel 👍

You wouldnt want to mess with hose size like that, it will change water pressure and affect the vacuum on the venturi.

40 micron is a lot, I use 20. Is yours traveling through a chiller?

That's the plan! Working on it now 👍

Is this a DIY hot tub? I'm guessing an existing hot tub would have it's own system?

Flow is prioritized to the filter because the venturi reduces in size.

That'll depend on the PVC fittings used - some have a 1" inset some have 3/4"

To protect it from ozone, and to prioritize suction at the venturi. Any debri that gets through the strainer, & pump (in my opinion) likely won't harm the chiller.

I would keep it consistent. The pump and filer housing are all 3/4"

For sure!

This filter has a bypass and shutoff valve so you can change the filter without shutting down the pump

It's a different configuration. Both work 👍

I've been running 24/7 as a test (tub is outside) but anywhere from 30 min to 2 hrs a day will be plenty

Hey! There's a good number of people in my facebook group that use that one, otherwise I can still get that one at Home Depot. I'd check there.

I'mnot sure on that... the filter would but I dont know about the ozone/potential for leaking.

The filter housing and Venturi are fitted for 3/4" - I've never tested 1"

Hey! The filter definitely gets dirty. Because the venturi condenses down, majority of the water flow goes through the filter. Gravity doesn't contribute much to the system at all, its all flow-based.

​@@DIYColdPlunge Maybe a strainer upstream of the filter/sanitation would be a good idea to catch sediment that may find its way through the Venturi and into the cooler? Thanks for the great DIY. Adding this setup to my Ice Barrel 300.

I guess the check valve before the generator would suffice....

Hey! the ozone tube can pop off with a little bit of force, there isn't really a need to have a shutoff specifically for the ozone - but I did incorporate shutoffs and unions in my plumbing design to replace/service each component (pump, chiller, filtration, etc.)

You'll want to change to 50 micron. Some use 20-30 as well, 1 is way too small.

Majority of the water is going through the filter. Just enough is going through the venturi to create the vacuum. If everything was in line it would GREATLY reduce flow.

Running it on a timer is recommended.

The spa tubing should slip over the barbed fitting, is that how you tried it?

@@DIYColdPlunge Ahh! That makes sense - I did not try that, but I will 👍🏾. Thanks!

Create a little loop with the venturi on top and a ball valve below to help prioritize some flow to the venturi.

@@DIYColdPlunge thanks!

The plan is more efficient 👍

This is what I used www.menards.com/main/plumbing/hoses-tubing/pool-spa-tubing/sioux-chief-3-4-id-x-10-l-flexible-spa-hose/900-16300w00101/p-1470660864012-c-8582.htm?tid=4665030024845156130&ipos=2&exp=true

The filter is there to collect debris 👍

Yep!

No... and even if it did, as soon as it returns to the tank it would be in contact with unfiltered, unsanitized water. The only way to get 100% filtered water would be going from one tank to an empty tank. The number of times the water turns over through the system is the key.

Yep! I have a recommended parts PDF available showing all the components

ive had success with 60 min/day 👍

I have it outside of the tub

@@DIYColdPlunge so I don't really get it ! How did you put your tube in then ??

A pool pump would work great in that case, as long as it has the power to create a suction for the venturi. You would also want to skip the filter part of this - most pool pumps come with a filter built in.

@@DIYColdPlunge The Danner 1200 is out of stock. If we have a 150 gal rubbermaid (obviously not filled to the top), would the Danner 950 (#02710) work?

@@DIYColdPlunge I have an intex pump. Are you still recommending using just the filter in the intex or should I use a double filter (intex + ge filter)?

I'll get these updated, but you can head over to diycoldplunge.com/

Thanks Jamie. Ill use bulkheads to go back to the stock tank. I don't believe there was a dual pump setup. Is that what you have seen? I'm curious if you have pictures of that. My friends goes pump, chiller, filter/ozone, then heat (bc his is hot and cold) and then returns into the tub

Hey Joe. With more research I figured out what it was, it's a Jebao PU-18 Pond and Aquarium Clarifier. It uses a UV bulb in that long chamber, which aids in sanitation and water clarity. I initially thought it was a pump. I saw the image in one of their Plunge filter removal/change videos on RU-vid. I was looking at getting the jebao DCT-6000 it's rated at about 1,500 gph. That's assuming I get the penguin 1/2hp chiller. What are your thoughts

@@Jptl07 aah that makes sense. I just looked that pump up, never heard of it before. I think it should work great. I have a Danner Aqua-Mag 1200 that I really like and the flow is in that same range. I may have to bite the bullet and test the DCT-6000 as well.

@@DIYColdPlunge will that pump have enough pressure to push the water through the filter in this video? Thank you, appreciate all your guidance!

@@chrisfreeman1054 Yep! I'll post a video showing it working soon.

Here's what I used - www.menards.com/main/plumbing/hoses-tubing/pool-spa-tubing/sioux-chief-3-4-id-x-10-l-flexible-spa-hose/900-16300w00101/p-1470660864012-c-8582.htm?tid=ae3e06b9-26c4-4402-8c30-44ccbeb5ac81&ipos=4&exp=false

www.menards.com/main/plumbing/hoses-tubing/pool-spa-tubing/sioux-chief-3-4-id-x-10-l-flexible-spa-hose/900-16300w00101/p-1470660864012-c-8582.htm?tid=ae3e06b9-26c4-4402-8c30-44ccbeb5ac81&ipos=4&exp=false

You could set this up a number of ways, and what you outlined makes sense if I'm visualizing it correctly. BUT, if you have some sort of strainer cap, that shouldn't happen. And if anything, it would affect your pump not the filter/venturi. No wrong way to go about this though!

I've got a link to the one I'm using on my site

ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-RELc6xNzfLM.html

I've had more success with the barbed fittings. There was a high amount of leaking with people that ordered threaded venturi's from amazon'

@@DIYColdPlunge then you go straight into the soft pvc with it?

Spa Hose to PVC fittings 👍

@@DIYColdPlunge haha … i guess i should have said do you have any photos or or videos of how you connected it.

I recommend Danner pumps

It's actually a common sanitizer in hot tubs and pools in some cases. It only needs to run an hour each day, and I have had no issues.

I've never tested it. You could make a post in my FB group facebook.com/groups/diycoldplunge

Back in stock now!

@@DIYColdPlunge Sold out again :)

It will cure, you should be good 👍

you could just run some water through and then drain

I have a few other options in my parts and components guide - linktr.ee/diycoldplunge

You can use any household water filter and housing, that's what this is

The main reason is to maintain the flow rate of the water - which most want for a few reasons. The venturi injector needs a certain PSI to create suction. Your chiller also needs water to move at a certain rate to function efficiently and keep the water cold. The electrical consumption difference on a pump is going to be extremely minimal. From a user experience standpoint, moving water will break down the thermal barrier your body creates.

@@DIYColdPlunge so essentially to reduce flow past the venture and maintain flow everything else?

@@pearlpirate Yes, keeping a high flow rate

That was a thought of mine too.. at the end of the day I modeled this after "The Plunge" and used the parts/specs they have. Mine has worked well so far. You can take a peek at the flow at the end of this video ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-Dr5WrZaQrCo.html

@@DIYColdPlunge But there is no filter element inside the housing at the end of the video. The element would be the limiting factor. Well, if it's working for you I'm guessing it'll work for me and the Danner 900 I have.

Yes - It works with the filter in the housing. I wouldn't keep this up if it didnt. And, any loss in flow through the housing would only make the venturi work better by prioritizing flow there.@@REBooner30

You will drastically sacrifice flow putting them in line with each other. With a small closed loop system like this your water turns over many many times throughout the day filtering the water without issue.

Didn’t know at the time the reduction the venturi provides … built your system works like a charm 👍🏼👌🏼

If you want to avoid holes, a submersible pump is the way to go. The Danner pumps I use and recommend can be submersed or used in-line 👍

@@DIYColdPlunge Amazing thank you very much

@@DIYColdPlunge just one other question regarding this...could I run it from the submersible pump, through a pool filter (also submerged as it is sealed) and then straight back out into the bath itself?

Depending on how the rest of your setup is configured, both work 👍

what pump and chiller are you using?

1 1/2 hp chiller from vevor@@DIYColdPlunge

the pump is OYO WATER 1600GPH Submersible /inline pump

I can't say for sure with that setup, but worth a test @@jasongulvartian5163

ill try it and find some one inch adapters and see how it goes. @@DIYColdPlunge

If you are using ozone indoors you will want to very closely monitor it - from what I have read it seems the recommendation is to run it for a small interval each day when it won't be in use, make sure there is a tight lid on the tub and have a fan/ventilation available if needed. I personally can't speak to it, my setup is outside

I like your thinking! Most pumps will output between 1000-1800 gallons/hr. On a 100 gallon tank (that probably has 80ish gallons in it) the water changes over many times. Ozone generators should run at least an hour, maybe 2-3 depending on overall use so majority of the water will see ozone a few times over during that time span. Putting the venturi exclusively in line would greatly reduce the flow rate, affecting overall water circulation and making the pump work a lot harder. The ozone will also meet up with the water after it runs through the filter anyway. This configuration is the best of both worlds.... I totally realize this is a ramble but long story short this keeps the water moving so more water overall can be both filtered and "ozoned" 😂 Does that make sense?

I was wondering the same question, but that was a great response! I understand both thought trains but after hearing your explanation this system seems perfect

All these comments make sense...but to get the best of both worlds it seems like the parallel part should be after the filter. That way all water is filtered, then some is split off to the venturi tube for ozone, then rejoins the rest. Anything wrong with that scenario?

​@@jwgreene2the thinking here is so the venturi also acts as a bypass in the case of the filter becoming plugged. This would prevent the pump or chiller from burning out if the filter plugs

I also think that @jegreene2 is correct, I sell some ozone diluted in water systems and what we struggle the most is that for some reason the Venturi gets clogged,and then we have to unclogged by running water in reverse, when you pass your water without filtration through your vinturi you can also get the same problem of getting it clogged. And in your system there is no way to run water the opposite way to fix it.

Hm.

www.alibaba.com/product-detail/AMBOHR-SPA-124-ozone-dog-spa_1600250579766.html?spm=a2700.12243863.0.0.2ce83e5fT27DbM

You'll need to specify 100mg/hr, 110V US outlet

I do and I absolutely love it. Charges me up every morning, feels like you can take on anything

This isnt true for a closed system this small. You'd have to empty one container into another for what you are describing to make sense... as soon as the filtered water re-enters its no longer filtered. Also - most of the water is forced through the filter with how the venturi injector condenses down 👍

Are you pre-filtering when you fill it up with an RV filter?

@@DIYColdPlunge nope.. will try that next change out. Thank you for tge note

You can, it's more expensive.

you missed the internal length of the fitting

🤔

nice!

1.5 + 4.5 + 1.5 = .... yep 7.5 🤯

🧐