Hi,
I have a 50,000ltr pool, concrete base, tiled top. I use liquid Chlorine and an automated filtration system. I have a kreepy Krawly. The filter / Krawly runs about 9 hours a day in summer and I use about 50/60 litres of chlorine a month. Ive been to Bunnings and tested my water, PH is in a good range and Ive topped up my stabiliser and anti-algacide a month ago.
My pool looks amazing when the sun is out, clean and the pool water is crystal clear. However in the shade you can see algi patches (green/brown) in patches on the floor of the pool.
Ive tried shocking several times with chlorine over the last few months but can't shift it. I really would prefer not to pay a pool person to come out. Any help would be awesome.
Happy to post pictures if that helps.
Perfect water, PH ok, stains on concrete floor
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- Pool Industry Leader
- Posts: 2592
- Joined: Tue 06 Sep, 2011 05:48
- My Pool: 10k inground fibreglass, Telescopic Cover, Hayward Powerline pump, Quality filter with glass media, 27kw output heat pump, K-2006C test kit
- Location: United Kingdom
Re: Perfect water, PH ok, stains on concrete floor
First of all get a decent test kit (Taylor K2006C or TF 100) pool store testing is unreliable and if you slam will need testing many times a day
First of all place a puck on the patch overnight and see if it disappears to prove it's organic
Shocking isn't a single process you need to Slam (shock level and maintain) in relation to the Chlorine / CYA Chart and the Pool Levels
What are your numbers
FC:
TC:
pH:
TA:
CH:
CYA:
I have a 45k covered pool so my CYA is about 20 and chlorine usage is about 300ml a day. For you to have a similar sized pool and about 2litres a day chlorine usage would indicate that your CYA is excessive
First of all place a puck on the patch overnight and see if it disappears to prove it's organic
Shocking isn't a single process you need to Slam (shock level and maintain) in relation to the Chlorine / CYA Chart and the Pool Levels
What are your numbers
FC:
TC:
pH:
TA:
CH:
CYA:
I have a 45k covered pool so my CYA is about 20 and chlorine usage is about 300ml a day. For you to have a similar sized pool and about 2litres a day chlorine usage would indicate that your CYA is excessive
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- Pool Industry Leader
- Posts: 1337
- Joined: Tue 17 Oct, 2017 10:52
- My Pool: 12 x 24 (45m3) liner pool, Triton TR60 filter with AFM glass media (Activate) and variable speed pump running 0.08HP
- Location: UK
Re: Perfect water, PH ok, stains on concrete floor
I second what Dennis said, full water results from your own test kit, take ownership of your pool.
You use far too much chlorine so maybe your figures will show why.
Why anti-algae, that just uses up more chlorine so there is less to actually work on the algae. It's a pool shop con. Chlorine is the best algaecide.
You use far too much chlorine so maybe your figures will show why.
Why anti-algae, that just uses up more chlorine so there is less to actually work on the algae. It's a pool shop con. Chlorine is the best algaecide.
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