Hi

Have a wooden pool with liner which i have opened recently and have identified a white stain which i am assuming is a chlorine stain.
Pool was shut off as per...

Hi, hoping someone can give me an idea on what the problem(s) might be.
I inherited a pool, 11 x 5 metre mosaic tiled, sand filter etc.
It was extremely green, this was...

Hi.
Please tell me, who can I understand that the pool does not have chlorine, the, is perchlorinated?
What test, must to doing?

Hi All,

I'm in australia, we use PPM to measure chlorine, and my pool is currently sitting at 5ppm.. however I have 2x different orp testers that both give me very low...

I have an indoor 66,000 litre swimming pool which I sanitise with sodium hypochlorite. I used to have problems with CyA levels being far too high (>300ppm) but got it...

Hi All, Hoping someone can shed some light on this,

Firstly I have a chlorinator that i suspect it on it's last legs, However my problem is when i try to test the...

Hi,

I have a DEL AOP 25 UV Ozone generator. How do I measure the chlorine in a range of 0.x ppm? My current test kits are all more in a resolution of +/-1 ppm.

My pool test keeps coming up bright orange been this way for 2 weeks now. I have order chlorine neutralize but my question is, is it safe to swim in? My PH comes up...

Hi guys! I’m seeing different recommendations for what level to keep the free chlorine at. I see 1-3ppm, 1-4ppm, and 3-7ppm. Any recommendations as to what level is best?

Hi there everyone,

I'm completely new to the whole chlorine idea and have found it a little confusing from my initial searches online, so I was hoping someone might be...

What are the upper limits for total and free chlorine levels in which it is safe to swim? Mine are both almost 10 right now and I can't find info online as to whether...

I just added shock, same type as I’ve been using for years and it made black areas where it settled. HELP!!!

Due to cancellation of a beach trip this year I went and bought a 18ft above ground pool at Walmart. 6450 gallons. I also bought that Clorox 6 way test strip. Yesterday...

We started off the season with our CYA levels high. After draining some and refilling there was improvement. We normally use liquid shock and 3 inch chlorine tablets....

We have an unground pool, 22,900 gallons. Our pool service advised us that we needed to have our pool partially drained because of high CYA. They wanted $330 with no...

Hi all, I have just recently set up a 14ft pool and need to add Chlorine as currently the water doesn't have any. I have bought some Shock Chlorine Granules but...

Hello everyone.

I have been using 0.5 pounds every two days of 70% granulated chlorine since I built my pool. Now I am facing a shortage of it, but I can still get 90%...

My chlorine level fell suddenly. I did have it relatively low % now that warmer weather here I bumped it up. Shocked pool to give a boost too. I notice my unit says cell...