Starting Up in San Diego

[Dashome]

Hello, thanks to TFPs Pool School we have successfully started up our new build here in San Diego. The maintenance company our PB recommended didn't do much to follow any of the pebble start-up recommendations provided by the PB. In other words, didn't vacuum, brush, or balance the pool. So I rolled up my sleeves and took over everything. Needless to say, I am nearly through the startup period which promotes a high CSI (FCl 1-3 and Ph 7.6-7.8). I am looking forward to converting to SWG (already installed).

My question, and am happy to start a new thread, is the local pool shop is actually is conservative and recommends running CYA <40 to leave room for di-chlor and tri-chlor emergencies (large parties, young kid accident, stains, etc). I am currently around 35ish. Since we don't drain annually this is their recommendation to preserve water for 5-7 years. Should I disregard this advice and follow poolmath (many thanks for this app, I bought premium) and go for the higher CYA or should I keep it lower and let it climb over the years?

 

[PoolStored]

With a SWCG, in SD, I would disregard the advise. They are saying that so they can sell you di-chlor or trichlor. You can just as easily add liquid chlorine or turn up the SWCG. I would not hesitate to run CYA 60-80.

I am very concerned about the size of your cell. The IC 40, running 100% for 24 hours IN YOUR POOL will only make 3.6FC. That is undersized. Running 100%, 24/7 is the quickest way to kill a cell.

Not clear if you have automation or not, but an IC-60 would be better, though still undersized, and will make 5.2FC. I think you will struggle to maintain FC with the IC-40, you may even struggle with the 60. In either case, you will certainly want to keep CYA higher. As you transition to the SWCG, have some liquid chlorine on hand.

At 46,000 gallons, I'd consider putting in multiple cells.

SWG Multiple Cells - Further Reading

www.troublefreepool.com

 

[Dashome]

Many thanks for your reply. I'll keep bringing the CYA up. PB thought pool was 32-35k gallons. It was only when it took 5 gallons of liquid CYA to bring it up to about 35 ish CYA that I reversed the calculations and figured out we're talking 46k gallons. Does this seem right to you? When I built out my signature, that's when I came to realize that I may need the IC60 after I burn this guy out prematurely. Will have plenty of chlorine on hand to maintain it.

 

[PoolStored]

So the quickest way to determine volume is the following. Download PoolMath....Link-->POOLMATH][/POOLMATH]

Adjust FC or pH when you need to adjust. Make the adjustment by adding chlorine or muriatic acid. Test 30 minutes later. Enter your starting FC or pH. Enter the amount you added, then adjust the pool volume until your change in FC or pH matches your before and after testing. Use the "effects of adding" in the menu.....