I cannot seem to keep a decent chlorine level. I opened in May, superchlorinated with Cal Hypo. So far this year, I am eating through Di-Chlor tabs at a good clip, but...

how do you test Free Chlorine and Combined Chlorine? I use the OTO test that turns the water yellow I guess that is the CC how do I test for the FC

I have a 28' round above ground pool with a deep bottom. It holds about 21,000 gallons. I went and had my pool water tested yesterday and they told me I need to drain it...

I have a Haward Auto Chlorine Feeder that is not working properly. It was working before and when the chlorine tabs finished and I replaced new ones... now Chlorine does...

All other chemical levels in pool are normal but pool won't hold chlorine (the water in the pool, which is 17,000 gallons, is only a year old, as this happened last year...

Normally I use Chlorine tablets and put in my auto chlorinator, have by accident ordered online and received chlorine granules....my mistake.
What can I do to use...

We have perfect readings for our in ground pool but no chlorine levels. I've been reading that extremely low chlorine levels is attributed to the chlorine smell but we...

:roll:

We are having fits with the Chlorine reading. Our pool people say we are suffering from Chlorine Block. We were told to shock it with 10 bags of chlorine shock...

Can someone please help me with this problem? My pool has an algae problem which I tried fixing with Leslie's Chlorbrite and 3" tablets. It didn't work and I...

I switched my pool over to a SWG last week (Aqua Trol). I ran it for a few days and took my water in to have it tested for a baseline.
Pool is 24 X 52 above ground.

FC...

I have an inground 18x36 22,000gal. oval with vynal liner and sand filter.
I use the 3"slow dissolving pucks thru skimmer, no auto chlorinator. Just by reading
the...

Hello,

I need to drain my spa so that I can move it several feet to a new location. In order to not waste the water, I was going to pump the spa water into my nearby...

My Question is with regards to the effect of water temp on my ability of my FC to sanititize.

Water balance details:
FC = 4.0
Combined Chlorine = 0
CYA = 65
TA = 70...

Problem: Not making any headway on pool. It is just staying a light green and is cloudy. It has been this way for about a month. Can't keep chlorine level up.
FC:0.5...

Hi - just opened the pool today in Maryland - somewhat green water as expected.

anyway, the pump is broken - and it's going to be a couple of days before we can get...

Hello everyone,

New pool owner here.. purchased a short sale house that had a pool that sat for 1.5 years. Drained, had the pool resurfaced (marcite) and refilled....

I have heard from a number of pool supply stores that I should shock my pool every week to eliminate the problem of combined chlorine. I have gone more than 3 weeks...

i just bought a house and the above ground swimming pool has been siting ( with water) for 3 years
so you can imange the mess i had
it's a 13,600 gallon round above...

is it possible for too much antifreeze left in water lines to effect saitizers' ability to sanitize? i can't get any chlorine reading. pool emptied and filled with fresh...