Stenner pump users

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H-12 1/2 Mike

H-12 1/2 Mike

Bronze Supporter
LifeTime Supporter
Apr 14, 2014
215
Highland Village, TX
Pool Size
16400
Surface
Plaster
Chlorine
Liquid Chlorine
Are you still satisfied with your Stenner pump dosing system? Would you make the same decision to install one today?
I gave up on the liquidator and plan to install a dosing pump instead of a SWG system. Mainly cost and a trusted pool service guy's recommendation not to.
 
H-12 1/2 Mike said:
Are you still satisfied with your Stenner pump dosing system? Would you make the same decision to install one today?
I gave up on the liquidator and plan to install a dosing pump instead of a SWG system. Mainly cost and a trusted pool service guy's recommendation not to.
Click to expand...

I have the 45MPHP10. It is 10 gpd, Fixed Rate, 100 psi, #2 Tube. I am very happy with my Stenner pump and would definitely do it again.

The Stenner is lower initial cost as you mentioned, but over the would be life of a SWG, it works out to be the same cost as a manually dosed chlorine without the Stenner. Add in the Stenner cost and a SWG is probably cheaper if you compare 5 year costs. The Stenner does require yearly maintenance such as pump hose replacement and cleaning the duckbill (if used). Once installed, the Stenner is very reliable and usually not prone to issues. Down side is that you have to refill the tank. Other than that, the Stenner doesn't require any specific water chemistry. It is fairly easy to plumb the Stenner output hose into the pool plumbing. I did add a separate timer to automate the doses.

The SWG obviously requires adding the initial salt and then monitoring and maintaining the salt level. The SWG has a higher upfront cost and cell replacement cost needs to be considered in 5-8 years. Even with these, there are a significant number of members here that love their SWG wouldn't trade their SWG for anything. A SWG pool still needs to be monitored and maintained. There are a number of myths about SWG and salt water, Before you fully dismiss this option, do some reading on them here. Use the white search box on the top right of each page.
 
I like my Stenner. Replacing tube and duckbill annually. The bleach problem is lessened by getting a large quantity at one time. I order bleach at the local Walmart so I don't have to go find it. Then pick up 2 months worth at the time. I also use the weak bleach 6% so I don't have to worry about dates. Concentrated bleach degrades quickly.

Another consideration: pump run time. I run pool pump 2-4 hours per day. If you have a SWG, you will likely need to double the pump run time in order to chlorinate the pool. You will also have to add more acid with a SWG.
 
Thanks for the information. I talked with Stenner in Fla. and they gave me a recommendation for the pump and tank. Now for the hard part, finding the pump set and ordering it. So far, I have contacted six, supposedly local distributors, with no luck or in some cases no "call back". There has to be a large distributor who specializes in these pumps?
 
I found my pump on E-Bay, and paid $85 for it new.
I LOVE my Stenner, and wouldn't hesitate to buy another if it ever goes out. (Even if I need to get it at full price)
I buy my bleach at 12.5% in a 55gal barrel, and buried the 1st barrel beside the equipment pad to keep it out of the sun, and cool. When it is time to refill, I get another 55 gallons, and siphon into the buried barrel.
I also got a small cheap hand pump that I can put into the barrel, and pump out some bleach for the wife's needs in the house, or if a neighbour needs a couple of gallons for their pool.
 
With all of the frustration associated with trying to locate the Stenner system, I decided to go with my plan B. I just purchased a SWG system E 35 made by Astral. It comes with a 4 year warranty so I calculated my ROI to be at 36 months.
 
When you calculate your ROI, be sure to include the power consumption for running your pump extended periods and your acid costs. I run my pump 2-3 hours a day. I don't need any longer than that to filter and get my chlorine in.
 

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I run the pump 24/7 mostly at low rpm and have been doing that for the 20+ years we have owned this pool and the monthly cost is less than $26. I am spending about $70 on the liquid chlorine per month. For a perfect pool my kids, grandchildren and great grandchild can enjoy I figure it is well worth it. I guess we call it priorities and choices.
 
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I looked up other's comments on your pump. I saw them talking about 170 watts at low flow. That's incredible. I see that it does not draw much. But you may have to run the pump at higher RPMs during chlorine production to flush out the hydrogen produced. I also calculated 3ppm daily bleach use for a 16,400 gallon pool. I buy the cheap $1.77 Walmart bleach which would be $42/month for your sized pool. I second the thought of not having to haul bleach. My Stenner set up cost $250 and its trouble free..
 
I am using Walmart bleach at 10% concentration @ $3.64 per gallon. I check my chemistry each day and am using 74 oz per day and it is not even summer yet here in Texas. My decision on going with the SWG was weighted heavily on my inability to locate the Stenner recommended pump and tank. When I started investigating the SWG I figured why continue to "run into brick walls" searching for a viable dealer when there was a good and proven alternative? My preference would have been Stenner because I was comfortable with the daily dosing of liquid chlorine but I also believe that sometimes we must go outside our comfort levels in order to bring projects to a conclusion.
 
I have had my Stenner Pump for almost a year and wouldn't hesitate for a second to order a new one. I use to test every day but it gets boring seeing the same number over and over again. Now I am down to every 3 days when I am home. When I left for 3 weeks for work I filled the jug up and came home to a crystal clear pool and a FC level of 6 (Normal). I have been tracking my PH lately and thinking of adding a pump to automate acid dosing as well.
 
I agree with Teald024. This is a DIY method. If you do not have minimal technical skills and ability to do things with your hands, you can't do the Stenner route. Having to depend on a salesman or distributor to tell you which pump to buy and having difficulty locating a Stenner pump are both signs that you are probably not one who can go this route. You should depend on something entirely installed and set up by others. Stenner pumps, parts, and technical data are all over the internet, Amazon, eBay, pool stores, industrial supply houses, etc. I'm sure there are some out there. But I've not heard of a pool professional setting up a Stenner chlorine injection system.
 
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