Phosphates?

[ethany]

I balanced my pool water a few weeks ago. Did the over night chlorine test and it worked. I went away for a couple weeks, had the pool pump on 12 hrs day. I came back and didn’t test it til recently. Zero chlorine. I have a SWG and everything seems to be working within perimeters. I put in 1 gallon of bleach last night and put pump on 24 hrs, also hit boost on SWG.

This morning I have 1 ppm fc. Went and got it tested at pool store and they said it’s my phosphates too high. Should I buy phos remover or start shocking again? My cyranic acid is a little high @90 so that’s a lot of chlorine I have to buy.

What do you think?

 

[ajw22]

Phosphate remover does not clear the algae you have. Spend your money on the chlorine that kills the algae and not on phosphate remover.

Drain your pool and lower your CYA to 50-60 before the SLAM Process

Phosphate Removers - Further Reading

www.troublefreepool.com

 

[ethany]

That sounds like a lot of water. You think that’s a long process of removing and adding water? Not sure how much water to remove, I mean do I have to set aside hours of time to do this? Sorry if this is a silly question

 

[Donldson]

How did your CYA get that high so quickly after opening?

You can perform the SLAM Process with CYA that high, but you're going to have to maintain the FC level at 36. It's a bit of a chore, but it's not impossible.

 

[ethany]

I actually opened a month ago. I slammed it back then and did overnight chlorine test after a few days slamming and it passed. Put in recommended cya than went out of town. Came back and water looked great. Had on swg and didn’t test for awhile. Little did I know I must have had a little algae growing, guess I was not done shocking the first time.

Water still looks clear but a little algae here n there on wall. So instead of draining I opted to spend $90 for 10 gallons of liquid chlorine. I’m hoping won’t take long since water looks clear.

Can I do an overnight chlorine test tonight? Or you think I’ll be slamming for a few days?

 

[ajw22]

Now that I see you have a fiberglass pool, you do not want to drain a fiberglass pool. To lower your CYA you would need to do a water exchange as described in Draining - Further Reading

What test kit are you using?

Post a complete set of test results from your test kit…

FC
CC
pH
TA
CH
CYA

 

[ethany]

Taylor……FC-1ppm
Cc-.5
Ph-7.6
TA-80
CH-220
Cya-80/90

 

[ajw22]

Confirm your CYA is only 90 by doing the dilution test...

For CYA > 90ppm, repeat the test adjusting the procedure as follows:

1. Fill the mixing bottle to the lower mark (15 ml line) with pool water.
2. Continue filling the mixing bottle to the upper mark (30 ml line) with tap water.
3. Shake briefly to mix.
4. Pour off half of the contents of the mixing bottle, so it is again filled to the lower mark (15 ml line).
5. Continue the test normally from adding R-0013, but multiply the final result by two.

If you need to dilute the pool water further then apply these ratios:

Pool water	Tap or distilled water	Multiply result by
1	1	2
1	2	3
1	4	5

Note that when doing a diluted test not only do you multiply the range of the test you multiply the error rate of the test, so results are a ballpark - not an absolute.