Peristaltic pump compatibility

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G

gorocket1981

0
Jun 8, 2018
163
Montreal, Canada
Hello,

I am looking to buy a peristaltic pump to automate liquid chlorine distribution.
I am in Canada and finding a peristaltic pump at an affordable price is nearly impossible. Maybe it is just me, but I didn't find anything robust and easy that can be installed outdoor at an affordable price.
I know that a lot of people talk about the Stenner pump. It is clealy not cheap but seems great and I was considering it because of no other options.
Today I found a interesting price on an Hayward AC035 peristaltic pump.
The pump description fit with what I am looking for "Simple and easy to install and use, the AC035 pump features a Nema® 4X waterproof, shock-proof, chemical resistant housing, a 115V standard wall plug for power, and is NSF Certified."

I have a technical question. In the specs of the pump it says 6.34 GPD and Pump Max Back Pressure (PSI): 22.
6.34 GPD is fine for me. For the pressure, what it means? Should I worry about this specifications? The Stenner pump I saw mentionned often is 100 psi.

I don't know how to interpret this technical parameter. Would this pump work to automate my thing or I will have issues?

Thanks!
 
You will need a pump that you can get parts for as the pump tube will need annual replacement. I doubt your pressure at the point of injection is that high. It should be less than the pressure on your filter's gauge. If you want to be certain, you can go ahead and put a tap point in your system after the filter, heater, all valves, etc. This should be the last thing in the plumbing as it returns to the pool. Tap it 1/4" pipe thread and then move your filter pressure gauge there temporarily. Your pressure should be less than your filter pressure and you should be fine. Just be sure that you can get cheap replacement tubes for the pump you have chosen. If you where to have problems with the pool pump back filling your chlorine tank, you could install a Stenner duckvalve (check valve) in to the system. This is not normally needed with a Stenner, but I'm not sure about the Hayward pump. New Stenner pumps on eBay are about $250.

Stenner tank, pump, injection valve, weighted strainer, everything you need ready to go are
www.poolweb.com

S3G45MFL3A2SUAA - 30 Gallon Chemical Tank With 45MP3 Fixed Pump - 25 PSI 22 GPD 1/4 Inch - Stenner

This Stenner S3G45MFL3A2SUAA is a 30 Gallon UV resistent chemical tank with a 45MP3 Stenner chemical Pump. This system is 25 PSI, 22 GPD, 120 Volt and includes 1/4 Inch UV tubing. This combined chemical pump and tank system provides you a complete setup for your swimming pool..
www.poolweb.com www.poolweb.com
and
www.poolweb.com

S1G45MJL2A2STAA - 15 Gallon Chemical Tank With 45M2 Adjustable Pump - 25 PSI 10 GPD 1/4 Black - Stenner

This Stenner S1G45MJL2A2STAA is a 15 Gallon UV resistent chemical tank with a 45M2 Stenner Adjustable Flow Pump. This system is 25 PSI, 10 GPD, 120 Volt and includes 1/4 Inch UV tubing. This combined chemical pump and tank system provides you a complete setup for your swimming pool..
www.poolweb.com www.poolweb.com
 
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OK. So if I understand correctly, on my filter the gauge shows 15 psi at this moment. So, after everything, just before the water returns to the pool, the pressure should be less than that? Because the max pressure of the pump is 22 psi in the specs, I am OK with it?

The Hayward pump kit comes with a 2nd tube and a check valve injector. I suppose this is OK to prevent backfilling the tank?

Thanks!
 
Yes. The most significant restriction is your filter. After the filter, your pressure should be less. The check valve injector is a backup. I think you will be ok. My Stenner is the 100PSI model, but many use the 25 PSI model just fine.
 
OK thanks a lot for your advice. Any advice is always greatly appreciated.

I read more about the Stenner Tank System that you posted. It is interesting but clearly not cheap in terms of pricing. I see no way to be able to purchase this in Canada at a reasonable price. I am not that far from the border. I could try the shiptotheborder thing.
Is poolweb the cheapest place to buy this kind of product in the US? Do you know where this product can be found at the cheapest price in the US? Is there a price tracking available?
The cheapest price would be appreciated because with exchange rate, it will already cost a lot more :(

Also, I am interested in buying the Taylor K-2006C test kit with the speedstir to have a good test kit and know better the state of my pool instead of relying on pool store and dipstrips. Do you also know where is the cheapest place to buy this in the US?

I don't know much the US stores and the best kept secrets about pricing! :)

Thanks!
 

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That was my reason. My pool sides are made out of aluminum. All my metal is either aluminum or stainless. Some say that corrosion isn't worse with the salt. My manufacturer would void the warranty is salt is used. There seems to be a lot of support for the "not more corrosive" thought on here. A SWG produce the same chlorine as bleach. It's just the salt required in the pool that could possibly lead to problems - just not sure. You will get good support for liquid chlorine or for SWG chlorine on this forum.
 
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