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Not concerned with the light socket. Since I do have 12V, will try with "wires" from socket to a bulb - maybe center connector is "down" and not touching the bulb. Actually, was concerned about the rest of the fixture, i.e. sealed wires within.

OK; many replies about corroded socket. Socket is clean and NOT deformed. So; anyone knows if these fixtures go "bad" with old age?

Interesting, but connection is completely clean :(

Yes; battery only works "one way." Haha; yes, confused.

9V battery lights them up :)

Have an OLD (prob 30 yrs) Pentair pool light that quit working. First thought it might be the transformer so replaced controls with new Intermatic box. Still no go :( FYI, have 2 LED pool lights; one is working fine. When I check voltage at the fixture's socket I do get 12V, but when I screw in...

@RLP & @MITBeta . Thanks for the advise. OK; dumb question ... how do I get my FC up to 5ppm? Have a CircuPool 55K chlorinator; thought that would do the trick at 6-8 hrs per day; but it doesn't even come close :( Guess I have to add 1/2 gallon of chlorine daily. Just a bit dumbfounded as we...

@MITBeta . Thanks, and was not trying to blame the forum for their GREAT help. Was just a bit frustrated since I did not really SLAM it - just used the "pray" method, dumping 10 gallons of chlorine into the pool over 2 days. Yes; it worked :) Just had no clue why my filter was working again...

Sorry, but not very impressed with replies :( Believe I got my algae problem under control. Asked about further advise, but only got "filter is a pressure vessel" and "any leak is a problem" answers. SLAM procedures on this forum are VERY HARD to follow - and FYI, I am a professional engineer...

Haha; will post a pic if it starts leaking again. Has been fine for 5 days now. Leakage occurred when psi went over 20. Just light flow from in between the upper/inner part and the base. And ... guess the dead algae disintegrate so that is why my filter works again :) Thanks, Emile

@mknauss . Thanks; yes, pretty sure CC is at 0.5 and water is crystal clear. Guess I'll start adding CYA to get to the 70 level next. Only thing I do NOT understand is my Hayward EC65A filter. When I had my algae problem, it would "blow" (OK; leak from the top) after about one hour. Now it has...

OK; did the overnight test. FC dropped by about 1ppm - pool had already gotten about an hour of sun :)

@PoolStored . Thanks again. Yes checking the pressure on my filter ... was just hoping to remove as much as possible without multiple cleanings :)

OK; retested ... FC 20 CC 2 pH 7.6 TA 200 CH 500 CYA 50 Note; have not added any additional CYA yet. Also, pool filter is humming along (have not cleaned it yet) - has NOT clogged up in about 30 hours. Have kept on adding 5ppm Chlorine daily as MITBeta suggested. Comments please. Thanks, Emile

OK; got my TF-100 Salt chemistry kit. Here are my readings: CYA-50, FC-15ppm, CC-2ppm, so TC-17ppm. Salt is at 3000. Note, took sample water near "exit" jet with SWG "on." Should I take test water away from jets? After about 10 hours, my filter is still NOT clogged so haven't cleaned it yet...

Puzzled :) Was expecting my filter to clog up in 1-2 hrs as previous. Instead it has run for SIX hours. Haha, guess DEAD algae do not clog the filter as much :) Will let it run till it clogs up to catch as much particulate matter as possible before doing a clean-up and DE recharge.

Not sure if this stuff is OK; sold under brand name "In the Swim," but actually industrial grade made by Solvay ( Solvay Bicar Sodium Bicarbonate Alkalinity Up) On Amazon; 51 lbs for $57 :) Amazon.com

Haha; at least my filter runs about 2 hours until it "blows." Actually had great success with these filters. Usually lasted over 2 months! It all started when one of my pool lights went out. Tried replacing the bulb, but nothing even though I have 12V at the fixture. Thought it might be the...

Progress report. Test kit won't be here till this Monday :( OK; did a "dump and pray." (2 x 5gallons of chlorine). Pool looks crystal clear :) Test STRIPS results ... Total Chlorine 2, Free Chlorine 3, pH 7.6, Alkaline 60, CYA 40, Hardness ??. Will let it run till filter clogs, then clean...

TF-100 Salt. Haha; hope it is the correct one :)

Sorry; added 4 lbs but will wait with the "rest."

Kaylee, Thanks for all the info! SWG turned off. Test kit ordered. Haha; was hoping "dump & hope" would at least get me on track :) PoolMath downloaded - seems to need MS password :( searching for it. Cheers, Emile

Jim, Great! Thank you. Pool store told me my CYA was low, but of course did not specify the level. Just added 4 lbs ... another 3 lbs will go in in the morning. Will also add another 5 gallons of chlorine tomorrow - hope that kills the algae :) Yes; "dump & hope" approach until I get my test...

Haha; my "containers" are 2.5 gallons :)

Jim, Said "containers" as they (to me) seem to be larger than a gallon :) Yes; liquid chlorine. Haha; started with the "dump and hope" approach. Just ordered a test kit as I usually let the pool store handle this - and yes, pretty unreliable; never get the results just "add acid, stabilizer...

Kaylee33, Thanks! Ordering some test kits :) Cheers, Emile

Hi Jim R, Haha, thanks for not making me buy a new filter yet. OK; adding 2 containers of chlorine today and 2 tomorrow. Should I add "shock" also? Pool has been near perfect for 25 years. Never had this algae problem. Thanks & Cheers, Emile

Thanks! Yes, water is still a bit cloudy. Was adding 2 containers of chlorine every 2 weeks when my Hayward chlorinator started having problems. OK; will add 2 containers today - should I add "shock" also?. And another 2 containers tomorrow. Haha; and repeat if that does not solve my problem :)

Hi All, New poster here. OK; on my second Hayward EC65A - about 6 years old. Ran great, only needing occasional cleaning and 4-5 lbs. of DE once every 1-2 months. Started getting dirty DE in my pool when "bumping." Thought I might have too much DE so cleaned it (through the pressure meter hole...