mcrisanti

Member
Sep 28, 2023
5
Southwest Florida
Pool Size
15000
Chlorine
Liquid Chlorine
I bought a house and inherited a poorly cared for inground pool. The seller told me it was easy to care for, just keep the floating dispenser filled with tablets. In the meantime I've been plagued by yellow algae coating the sides and bottom. I got rid of it twice and tried to maintain the Cl level at 5ppm, but it returned again. Then the filter housing lid developed two small leaks. I tried sealing them with silicone and it didn't work completely, so I replaced the cover and o-ring, but now I can't get it to seal with the locking ring. So the pump hasn't been running, bad for the algae problem, I don't know what to do and I have guests coming in 2 weeks who will, no doubt want to swim in the pool.
 
Welcome to TFP.
Please read Pool Care Basics

Before we can tackle the algae issue, you need to have a fully functional pump and filter.
What type of filter do you have? Show a picture of it overall and also a close up of the model number and a close up of the locking mechanism.

For future reference, you can purchase a a sump pump on Amazon or at HD which will circulate your water by putting it in the shallow end and run the exit hose to the deep end. This at least lets you to keep your free chlorine (FC) up.

In order to address the algae once we get your filter operational you will need a proper test kit. See
Test Kits Compared
My concern is that the previous owner has only been using pucks which causes several things to happen over time. The CYA in the pucks helps protect the FC however, once CYA gets significantly high (over 90) the sanitation of the pool declines because the FC level is not high enough. This then causes algae to form.

So we need to know the values of critical parimeters which are
pH
FC
CC
CH
TA
CYA
Pool water temperature
It is recommended to do your own testing and not go to the pool store because those tests (although free) are not reliable due to a number of factors but mainly lack of experience of the pool store rep and cross contamination with other pool water samples.

Once you get the test kit and the results, we will need to perform the SLAM Process.
You will need to purchase liquid chlorine (LC). Since you are in FL you can purchase 2.5gal jug of fresh LC at Pinch A Penny. Just don't purchase any algicides or other quick fix solutions they may try to sell you.

I know this is a lot to think about for your first post but those are the steps we need to take to have your pool operational then properly sanitized to rid the pool of algae.
 
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