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    Raypak 406a-en-x Heater shuts off after an hour

    I have a Raypak 406a-en-x 14 yr old NG heater. I cleaned the burners, they are free and clear and installed a new pilot. Heater has no error messages. After startup, mode to pool and power on, gas on. CFH appears, SPK....a few clicks, then the gas value clicks open, and the burner ignites. All...
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    UV light rapid free chlorine level dropping

    thx chem pool is being closed for season 9-10. no sense of water replacement until next season over winter with solid cover still get leaves, etc… will hit next year. thx again
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    UV light rapid free chlorine level dropping

    With pump off overnight loss was 6ppm……no difference
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    UV light rapid free chlorine level dropping

    chem I am turning the filter off at 8pm will check tomorrow & let u know. that post was with filter removed but pump running.
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    UV light rapid free chlorine level dropping

    added 2 gal at 8am & in 3 hours loss it all!!! 10ppm !! I tried...
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    UV light rapid free chlorine level dropping

    I removed filters this morning, overnight loss 7ppm again. I will try tonight with system off. If is in the pipes, what is the treatment? filters are an easy replacement, ordered new ones.
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    UV light rapid free chlorine level dropping

    I have not left the system off overnight, will try tonight. I have cleaned the filters as per the site instructions of wash off soak in TSP wash, then acid soak wash> i did notice after the acid wash an opaque to greenish cast floating in the acid solution. The filters look ok. will remove...
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    UV light rapid free chlorine level dropping

    last Aug 2013 the pool store measured CYA 137!! I had some water displacement over the winter and had to add 5,000 gal of water. First test 2014 CYA:35… I have added 95gal at 5ppm each thats 475ppm chlorine…. But 34gal or 175ppm were with UV light on…. which greatly accelerated the chlorine...
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    UV light rapid free chlorine level dropping

    another day & same overnight loss of 7ppm. today's loss also steady at 5-6ppm per 3 hours… pool is consuming 1 gal every 3 hours ….
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    UV light rapid free chlorine level dropping

    yes chem my CYA is 45, my FC target is 20. Last night at 10:30pm FC:21 at 6:30am FC:14 so the loss was 7ppm overnight. the last 2 day I have tested every hour to maintain that >20ppm level. I am now able to maintain that level for 3 hours instead of only 1 hour. FC levels, except overnight has...
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    UV light rapid free chlorine level dropping

    Thats my point. no CYA loss or ammonia present. I stop testing because loss was constant in the 3 hour window so just added 1 gal every 3 hours to maintain > FC target & continue SLAM process. just tested FC:22 CC:0 so without CYA loss or ammonia present would you increase Fc level 8x the CYA/FC...
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    UV light rapid free chlorine level dropping

    Chem geek, Uv was unplugged 3 days ago. I believe this is why I have been able to keep FC levels. My CYA before this was 45 so even if +/- factor of 10, the FC target level has been excessed for 2 days. Are you say I may need to raise this target higher than CYA/FC chart. Then how do I...
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    UV light rapid free chlorine level dropping

    not going to test all day just going to add 1gal of chlorine every 3 hours (12:30 start) test at 9:30 adjust & see what happened Monday
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    UV light rapid free chlorine level dropping

    Thx swamp woman I agree. I was meaning with accepting the fact that I may not get <1ppm overnight & I may need to accept a maintenance of FC:4-7ppm with CC: .5 and a greater than > 1ppm loss overnight.
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    UV light rapid free chlorine level dropping

    at some point I may have to accept the fact that FC of 4-5 as maintenance & a CC of .5 is as good as it may get??
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    UV light rapid free chlorine level dropping

    the only other possible contamination & its VERY possible, is that I have a small water pond upwind but we have not had any wind in last 2-3 days. maybe cross contamination is occurring. weather has been overcast last 2 days also. small pond 10" away. so may need to rip pond out, which would...
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    UV light rapid free chlorine level dropping

    test 8:20am FC 25.5 C:1 even withCYA 50 FC> 25.5 is still > target
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    UV light rapid free chlorine level dropping

    yes same store, yes its new stored correctly. - - - Updated - - - yes wait 30min for mixing retest
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    UV light rapid free chlorine level dropping

    after testing 30min after last add of 4 gal 12.5% chlorine (new fresh) FC: only hit 27.5ppm & not 34ppm??? 30min of the 7ppm loss?? so chlorine not 12.5% or what? what would cause you to lose 7ppm in 30 min? this is almost the same loss over night.
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    UV light rapid free chlorine level dropping

    6:15 FC:14 CC:.5 …..from 10:30 to 6:15 21-14 loss 7ppm….so added at 6:30 20ppm chlorine.. 34ppm any thoughts?
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    UV light rapid free chlorine level dropping

    9:00pm FC:18 C:0 adding 6ppm back up to 24ppm
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    UV light rapid free chlorine level dropping

    5:50 FC:17 CC:0 went from 24ppm to 17ppm loss 7ppm in 3 hours, 2.3 per hr adding 7ppm backup to 24ppm should I be holding more FC during 3-6pm & 3 hours of sunlight in northeast? only way to tell is OCLT tonight?
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    UV light rapid free chlorine level dropping

    2:50 FC:19 CC:0 tested for ammonia--0 great Fc loss5ppm over 2:50 improving.. adding 5ppm back up to 24ppm
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    UV light rapid free chlorine level dropping

    12:14 FC:20.5 CC:0 added 5ppm to 25.5ppm of FC still losing 5ppmFC in 1:30 , now holding higher levels & for longer times...
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    UV light rapid free chlorine level dropping

    thx removed lights from niche & cleaned with brush were dirty with slime, brushed and vacuumed. added chlorine up to 24ppm
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    UV light rapid free chlorine level dropping

    yes swamp woman, it was suggested that i add some cya from 30 to 40-50 range to better hold Fc, so i added it in the beginning via a sock in skimmed… 2 days ago.. just using liquid chlorine(12.5%) also this am found some leaves in skimmer a hand full in each… removed. lets see what happens...
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    UV light rapid free chlorine level dropping

    full test PH:7 TA:90 CYA:50 so my PH fell & CYA increased taking shock level up to 20ppm. any thoughts.
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    UV light rapid free chlorine level dropping

    6:30am test FC:10.5 CC:0.5……so from last test & 30min after last addition of chlorine, the Fc loss 17.5 to 10.5.. OCLT 7ppm in 6 hours, but no increase in CC, so why the FC loss without any real increase in CC?
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    UV light rapid free chlorine level dropping

    10:40 FC:12.5 CC:.5 back up 16ppm
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    UV light rapid free chlorine level dropping

    8:40 FC:12.5 CC:0 looking good very strong smell chlorine… back up to 16ppm