We were first time pool owners last year (new to us house that came with older pool). I tried the TFP methods and found it overwhelming. We did use the slam method to get the pool open this summer and then switched to using trichlor tabs in a chlorinator for maintenance. We had an issue initially with a broken pipe in the sand filter which was repaired.
All has been well until about a week or so ago. The water suddenly became cloudy. Not green at first but just cloudy. We did some scrub/vacuuming and shocked it with a bag of shock. I noticed at some point that when we turn off the pump (which has been running 24/7 since May for the most part) and then turn it back on it sometimes spits green/dirty water back into the pool. There is no sand like there was when filter part was cracked... jsut green/dirty water. I'm not sure that this has been the sequence every time but last night the sequence was this... vacuuming and got air in the line... turned pump off, opened pump basket to refill with water, closed pump basket and turned pump back on... green/dirty water... not as much as sometimes but definitely there.
Also we are definitely battlling algae now... was visible on edges and bottom of pool ... we shocked with two bags last night and vacuumed... will brush/vacuum again this evening.
I can't check my CYA as I'm out of the reagent but I did add CYA a few weeks ago. My numbers have been GOOD.
today's numbers (similar to every day)
I also have an aquabug going most of the time right now for the last few days.
So... I know that y'all don't care for chlorine tabs and 'shock'... but with that in mine... my questions are twofold...
1) WHY is my return spitting out nasty green/dirty water when I turn the pump off and back on... and how do I fix this??
2) Is the cloudiness from the algae (it wasn't green in the beginning.. just not 'crystal clear' like it had been) or is it from something else and then we just have algae on top of it??
Thanks in advance (especially for those who don't school me in TFP methods.. I get them.. we just can't maintain them at this point)...
(oh... and bonus question... how can my CC be ZERO for days on end when we have so much algae??)