Will SWCG keep up in my pool

[jmurch]

Will salt keep up in the summer in Dallas. I opted to just stay without because here in AZ you have to supplement with liquid chlorine in the summer time anyway.

 

[PoolStored]

Will salt keep up in the summer in Dallas. I opted to just stay without because here in AZ you have to supplement with liquid chlorine in the summer time anyway.

If this is true, then your cell is too small...with an 18K pool, you should have at least a 45K cell, which should handle it just fine.

 

[Mdragger88]

Will salt keep up in the summer in Dallas. I opted to just stay without because here in AZ you have to supplement with liquid chlorine in the summer time anyway.

If your swcg is sized properly & running long enough & your cya is adequate it should maintain adequate fc/replace daily fc loss

 

[jmurch]

I may give this a try. It looks super easy to add. Any suggestions on not just the size but also a brand? "At least" makes me think there's a more appropriate size for 18k pool? Larger is pretty easy to upgrade to since I haven't bought or installed anything yet. I'd rather spend an additional couple hundred now and have one thats totally right.

 

[proavia]

Without automation, a Circupool RJ45+ or RJ60+ will work.
I'd opt for the RJ60+ as it's only a bit more money than thr RJ45+, but should last longer.
Circupool also has a DIY friendly warranty.

Look at the RJ45+ and upgrade to the RJ60+ for about $10 more.

With your VS pump, you can probably run at a low rpm 24/7 and produce a little bit of chlorine continuously.

 

[jark87]

To your original question, yes a SWCG will keep up in Dallas. And mine is rated up to 40k gallons on a 25.5k pool. I supplement with LC on an as needed basis, which is usually a gallon every 2 weeks or so during the heat of the summer. I’d much rather do that than add LC every day. When traveling, I’ll bring FC up to around SLAM level knowing that I can leave the pool unattended for a couple of weeks without a huge concern, at least from a FC perspective.

 

[Jimrahbe]

j,

I have three pools in the DFW area and have NEVER added Liquid Chlorine, or anything else in the Summer..

Anyone that has to add additional chlorine to their pool in the Summer, is just not doing it right, or their cell is way undersized...

Sorry, but your theory is just full of Bull Feathers...

Thanks,

Jim R.

 

[jark87]

Anyone that has to add additional chlorine to their pool in the Summer, is just not doing it right, or their cell is way undersized...

I’ve never had to supplement until this year, and it has been a relatively mild summer, so I’ve been a little perplexed by that. I’m also running at a higher rate than I have in the past, but I’m really staying on top of FC at an 8-10 range. I’ve been a little lax about it in the past.

I purchased a new cell last November and it already had to be replaced (under warranty) in the early summer. I just ran the OCLT last night to make sure I didn’t have an algae issue and passed that. Water is sparkling clear. I’ll run a chlorine gain test tonight to make sure the cell is producing as expected. I think it is, as I just tested again and FC is up since this morning’s test after the OCLT.

Based on Pool Math, my cell should be producing 2.5ppm per day based on run time and rate. I guess 2.5+ consumption isn’t out of the ordinary even with CYA at 70-80.

 

[proavia]

Based on Pool Math, my cell should be producing 2.5ppm per day based on run time and rate. I guess 2.5+ consumption isn’t out of the ordinary even with CYA at 70-80.

2.5 ppm is probably on the low side of what your pool uses each day.

 

[jark87]

2.5 ppm is probably on the low side of what your pool uses each day.

Yep, given that I’m added LC every couple of weeks, I’m clearly losing more than that. I just don’t want to put too much stress on the SWCG. I don’t mind supplementing with LC. I increased the rate slightly, but still probably not enough to entirely offset the consumption.

 

[proavia]

Yep, given that I’m added LC every couple of weeks, I’m clearly losing more than that. I just don’t want to put too much stress on the SWCG. I don’t mind supplementing with LC. I increased the rate slightly, but still probably not enough to entirely offset the consumption.

Using the SWG is actually cheaper than adding liquid chlorine.
What is your pump runtime amd SWG percentage?

You won't "put too much stress" on your SWG.
SWG run on a duty cycle. The percentage set is the on time during the duty cycle.
SWG set to 60% is on for 60% of the duty cycle and off for 40% of the duty cycle.
Completing a full duty cycle starts the process all over again.

 

[jark87]

Using the SWG is actually cheaper than adding liquid chlorine.
What is your pump runtime amd SWG percentage?

You won't "put too much stress" on your SWG.
SWG run on a duty cycle. The percentage set is the on time during the duty cycle.
SWG set to 60% is on for 60% of the duty cycle and off for 40% of the duty cycle.
Completing a full duty cycle starts the process all over again.

Yes, I understand the duty cycle of the SWCG. I had mine set at 60% for 17 hours and recently increased it to 65%. 60% generates 2.5ppm over 17 hours while 65% will generate 2.7ppm. 100% for the same period generates 4.2ppm, which is probably closer to the consumption rate on the sunniest days of the summer. But I don’t want to run at 100% for 17 hours and burn through the cell more quickly than I need to, which is what I meant by “too much stress”.

A gallon of 10% LC costs around $7. I use ~2 gallons per month for 3-4 months, so we’re talking about ~$50 per year. Meh. That’s not enough for me to consider a cost avoidance mechanism.

 

[Newdude]

But I don’t want to run at 100% for 17 hours and burn through the cell more quickly than I need to, which is what I meant by “too much stress”.

There is no stress, only hours removed from the lifespan. Those hours are cheaper than the equivalent of liquid chlorine, FC to FC.

So many people want to extend the life of their cell so they spend more on LC to preserve it. They lose the savings and the lugging that they went to the SWG for. It's just silly.

 

[jark87]

Those hours are cheaper than the equivalent of liquid chlorine

Like I said, $50/year doesn’t even register as an expense so that argument is lost on me, or maybe I should say it’s silly.

only hours removed from the lifespan.

So you’re making my point. It’s not even the cost of replacing a cell, but the hassle of having it fail, so yeah, I’ll do whatever I can to extend the life. But that’s just how I choose to roll on this subject. Doesn’t make it wrong.

 

[Newdude]

Doesn’t make it wrong.

No it certainly doesn't.

If that's how you sleep well at night, it's WAY cheaper than going to the Dr for it.