Getting a little nervous

[Khanair]

Hi everyone!

My first month into pool ownership and I think (thought?) I'm getting a handle on water chemistry but my last test has me a little worried. When I opened the pool, my CYA was 0. I've slowly been introducing CYA and I finally have it somewhere between 70 & 80. I've been running my SWG at 30-40 from 8:00am to 4:00pm.

Test on 6/1

FC: 7.5
CC: .5
PH: 7.6
TA: 140
CH: 270
CYA: 65
Salt: 2800

After this test, I added half a bucket of conditioner. The weather has also been cold and rainy during the week in between this test and the next.

Test on 6/8

FC: 4.5
CC: .5
PH: 8+
TA: 140
CH: 290
CYA: 75
Salt: 2600

After this test, I added 5lb jug of clorox PH reducer. I wanted to add a bag or 2 of salt but wasn't sure if I should be dumping multiple things into the pool at the same time.

Any advice would be awesome. Thanks!!!

 

[AftonJeeper]

Start here. You want to add muriatic acid to lower pH, don't waste you money on fancy products.

What are you using to test with?

 

[Khanair]

In figured there was probably a better solution for the PH but I panicked. I have a Taylor K-2006 which I'm getting pretty proficient with. Thanks for you quick reply.

 

[AftonJeeper]

The only two chemicals you don't want to add ad the same time are acid and bleach. I wait about 5 minutes between, but I also pour real slow in front of a return jet so you can see everything mix in before it hits the bottom.

I'd bring the FC up to 7-8 range and then read up on SWG. I think you need to be over 3000 for salt but I'm not an expert.

 

[Jimrahbe]

K,

Are you sure you have a T9 cell? I ask because the T9 is rate for a 25K pool and you have a 30K pool...

We always recommend a cell that is 2 x the volume of the pool, so this would make your cell too small for your pool.

I see where your FC readings went down between your two tests... I would recommend either increasing your SWCG's output or increasing your run time.

Unfortunately, cells are rate when running at 100% and 24/7..

With a CYA of 80 you need to keep your FC around 6 ppm and you never want it to drop below 4 ppm

Thanks for posting,

Jim R.

 

[Khanair]

Thanks for the info! I definitely have a T9 cell and I'm pretty sure my pool is somewhere between 25-30K. It shaped somewhat like a kidney with 39' length and 19' width at the widest part. I would say average depth is around 6'. We are new homeowners and we inherited all the equipment, so I'm not sure what what they were thinking when they installed everything.