Anyone use a HASA liquidator or stenner chlorine dispensing pump

[MarshsideMama]

Hi All, I am a third year AGP owner using TFP since the start. I want to install and use an automatic chlorine dispenser for liquid chlorine, but am concerned with the smaller size of my pool that the amount injected will be too high for my 7,500 gallon pool. Can you dial these down enough that you don't overchlorinate or that the flow of the HASA will still inject properly dialed way down? I hope this question makes sense. I've read all the threads I can here on TFP on the chlorine feeders but still not sure.

 

[PoolStored]

Hi All, I am a third year AGP owner using TFP since the start. I want to install and use an automatic chlorine dispenser for liquid chlorine, but am concerned with the smaller size of my pool that the amount injected will be too high for my 7,500 gallon pool. Can you dial these down enough that you don't overchlorinate or that the flow of the HASA will still inject properly dialed way down? I hope this question makes sense. I've read all the threads I can here on TFP on the chlorine feeders but still not sure.

Yes. You can either get one with a timer, or an untimed one and put it on a timer. You calculate how much chlorine you want to add, use the pump volume to calculate how many minutes to run to inject the amount of chlorine you want to inject.

Let's say you need to inject 26 ounces a day. For example, the Stenner ECON T has a built in timer with 24 events. You can get one with a 5 Gallon per day pump. So, 5 GPD * 128 oz/G = 640 oz/day. 640 oz/day / 24 hours/day = 26 ounces per hour. To get 26 ounces in your pool daily you would want to run the pump for 1 hour with a 5 GPD pump.

HASA is a different animal. Where the stenner injects, the HASA has a feed of water through the unit from the pressure side, into the unit, then back into the suction side of your piping. You then control the rate of addition with a valve. You might call HASA and ask if the valve controls are fine enough to allow you to run a 7500G pool. Downsides of the HASA are: 1) you need to put two holes into your plumbing vs. one for the Stenner, 2) if you have hard water, you want to keep your pH lower and keep your TA under 100 to prevent scaling...this is not a factor with the Stenner. Stenner gives you absolute control over how much chlorine goes into the pool, with the HASA you need to fine turn the valve.

Hope that helps!

 

[MarshsideMama]

Ok AWESOME thank you so much! Those were the answers i needed. I've been waiting on a response from HASA and haven't heard back, but we are leaning now towards the stenner system you recommend. A bit more research on those stenner econ t series leads me to these next 2 questions: would you rather run a smaller GPD pump or a higher GPD pump for my setup? I'm finding some of the ECON T series pumps available and my choices for pump 2.5GPD, 5 GPD or 15GPD pump? Maybe i'm overthinking this and it doesn't matter? Also, my choices for tank size are 7.5 gallons or 15 gallons. My basic TFP knowledge tells me i should be storing my chlorine in a cool dark place, and didn't know if the effectiveness/quality of the chlorine in a larger tank would be poor after sitting in the outside storage tank? My rough estimations based on last year show I only use between 1.5-2 gallons a week normally when i am not SLAMMING, so would a huge tank be bad? hey thanks for your help I truly appreciate it

 

[PoolStored]

would you rather run a smaller GPD pump or a higher GPD pump for my setup? I'm finding some of the ECON T series pumps available and my choices for pump 2.5GPD, 5 GPD or 15GPD pump?

I would always choose larger if the price is the same. Why? it will take less time to dose with the larger pump. At your size pool and 2 gallons a week, it won't matter, get the cheapest.

Maybe i'm overthinking this and it doesn't matter? Also, my choices for tank size are 7.5 gallons or 15 gallons. My basic TFP knowledge tells me i should be storing my chlorine in a cool dark place, and didn't know if the effectiveness/quality of the chlorine in a larger tank would be poor after sitting in the outside storage tank? My rough estimations based on last year show I only use between 1.5-2 gallons a week normally when i am not SLAMMING, so would a huge tank be bad? hey thanks for your help I truly appreciate it

Ok, now we are talking. Your thought is spot on. I'm lucky, my equipment pad is next to my garage. I was able to drill a small hole for the feed line between the two and keep the tank in the garage. I didn't really see bad degradation because of the heat. When I used it (now SWG), chlorine prices were less. 12.5% degrades faster than 6%. So there is a triangle tradeoff between concentration %, price and degradation. Sweet spot is likely 7.5%/10% liquid chlorine on this front.

The way the stenner is setup, You need a couple gallons in the tank before it reaches the pickup...you don't put the pickup on the bottom of the tank.

I would certainly look to put the tank in the shade (behind the pool on the north side, under a deck), build a little shade cover over it, or some people bury them partially in the ground. If you do a search on TFP around stenner, lots of threads.

I think you would be fine with a 7.5 gallon tank. If you decide to bury it, the 15 gallon would allow you to bury it deeper, you just don't have to fill it all the way.

Can you post a pic or two of your setup?

It might also be MUCH better for you to get a Salt Water Chlorine Generator. Don't have to fight lugging jugs, buying a stenner, worrying about chlorine degradation etc. @Mdragger88 has a bunch of experience with SWCG in smaller pools. What is the brand you like @Mdragger88?

FWIW, I had the stenner setup for a couple years and it worked well. @Newdude forced me to buy an SWCG. They are magic. Turn them on and they just make chlorine. Stenner is good, take my SWCG, I fill in the pool.

Hope that helps!

 

[MarshsideMama]

So so helpful. the 10% chlorine is the easiest for me to find locally, so that would be my best bet i think.

Lemme look a bit at my setup. I have a deck the stenner could go under, so I will have to do some thinking on exactly where. I don't think i can bury the tank because the water table is not far below the surface soil (we live next to salt marsh, hence the AGP). But the under the deck idea for shade would be completely feasible, it would just be about 6-8 feet away from the rest of my equipment, not sure it would matter?. I saw a slick idea about putting the stenner in a plastic garbage can in sleek way with a door cut on the side to add chlorine and keep the pump out of the elements. Maybe the combination of the two would help. I'll try and think it thru a bit and snap some photos tomorrow in daylight if i need more help.

I've debated with my husband on an SWG. On our starter pop up AGP three summers ago, i put in a small low end SWG. I hated lugging the salt more than the LC jugs. Also, it was prob the small cheap SWG but it kept getting crusted up and didn't seem to keep up with the demand. I was a newbie and was probably doing many things wrong, but after lots more salt, to replace all the splashed out water from my two rambunctious kids, It turned me off to an SWG. maybe i should rethink?

too many choices

 

[pjt]

I had a Liquidator at my previous pool. It worked well and did what it was designed to do. Be sure to add a needle valve to regulate flow.

My current pool has a SWG. I would never consider any other chlorination method. I highly recommend you consider installing one.

 

[PoolStored]

too many choices

Having had both stenner and swcg, if I were in your situation, I would go SWCG. Salt levels should be fairly stable. I add MAYBE 1-2 bags a year. Salt is NOT consumed by SWCG!!! Only splash out and backwash lower salt levels, so you won't be lugging salt all the time.

Let's get a response from @Mdragger88...there are better units than the old one you had...for not much more than the stenner. Liquid Chlorine prices are going nuts too...

 

[Mdragger88]

I had very good experiences with my intex swg’s & the value they provided for the cost I paid. The 15k gal unit (about $200 currently) should be appropriate for the op’s sized pool. @MarshsideMama your 15’ round pool volume is closer to 5300 gallons & that’s if the actual water level is 48 inches. You only count the water level, not the height of the pool wall for volume.

If they can swing it something like a circupool sj 20 or a pureline 20k unit (around $750-$800) it would ensure more than enough fc & last 2-3 times as long as an intex unit although the roi might not be there since the intex units have come down in price.
I had 2 intex units on my 26k gal pool (a 7k unit & a 15k unit) I still needed to supplement in the dog days of summer though. I probably wouldn’t have had to if I had 2 -15k units.
My 16’ round pool was fine with a 15k unit running around 8hrs a day in the peak of summer, no supplementing necessary. I got 2 to 3 seasons out of all my intex units before problems arose.