Recent content by SJPoe

  1. SJPoe

    Featured Am I Using the FAS/DPD Correctly?

    1 heaped or two level. As long as it goes pink, you probably have enough.
  2. SJPoe

    New PoolMath coming

    Not sure if anyone else has this issue, or just me. Noticed my CC number was 5...which was odd. I did my tests, recorded the FC 9 point 5, and then the cc, point 5. So when I hit "point 5", it ignored the 'point' and just put in 5... Did some fiddling, and you can't just hit . then 5, you...
  3. SJPoe

    Featured Am I Using the FAS/DPD Correctly?

    For us Micchiganders, @Newdude's chart would look more like this :)
  4. 1715874979833.png

    1715874979833.png

  5. SJPoe

    Nervous about servicing my AquaPure PLC1400

    I generally don't like channel-locks for plastic pipes - they tend to be too narrow, and it's easy to just put too much pressure on, especially on PVC pipe. I have a couple of big 'pipe wrenches' - the slight taper of the jaws grips up the pipe or collar vey well, and the long handle allows you...
  6. 1715715130932.png

    1715715130932.png

  7. SJPoe

    Discrepancy between salt readings

    week 32 2019, that would make it early August... 4 1/2 years assuming a little shelf-sitting...not crazy on the logic front.
  8. SJPoe

    Discrepancy between salt readings

    According to the interwebs (I'm sure some more experienced people will chime in shortly tho) - it would look like that was manufactured in January 2005.
  9. SJPoe

    Featured Am I Using the FAS/DPD Correctly?

    Hayward Aquarite, with (I'm no expert, but that looks like) a T-Cell-15 equivalent, which would push about 1.5lb/chlorine a day at 100% You can punch that into Pool Math to get an idea of how much chlorine is being generated in your 17,000 gallon pool, which comes out to about 3ppm/day at 30%...
  10. SJPoe

    Featured Am I Using the FAS/DPD Correctly?

    Approaching this from another angle : What is your SWG make/model, what is it set to power-wise - and is that the only source of chlorination currently being used ? getting up to 17ppm+ if you're only running the SWG at 30% seems unlikely - unless the SWG is seriously over-sized or the pool is...
  11. SJPoe

    Thoughts On CYA Level VS FC

    To clarify my post, as Duraleigh says, Slamming (which it looks like you're attempting) with a CYA so high is very difficult. Immediately, you need to get some FC in there to ensure the situation doesn't get any worse, and then you need to look at exchanging some water to push the CYA down to a...
  12. SJPoe

    Thoughts On CYA Level VS FC

    Cloudiness is not being caused by high CYA, it's probably being caused by Algae - because your CYA is so high and your FC so low. You are literally stood on the cliff-edge at 5ppm. Either raise your FC to a level appropriate for your current CYA (7+), or lower the CYA (via water changes) and...
  13. SJPoe

    Thoughts On CYA Level VS FC

    Are you testing for those numbers yourself ? The CYA test is logarithmic, you cannot 'interpolate' between the marks and come up with 95 or 105. If your CYA is 100, your absolute minimum FC number should be 5. Better if it was 7. My pool CYA is 80 right now, and the FC yesterday when Grandson...
  14. SJPoe

    Gallons per inch

    If the pool is round Radius x radius x 144 x 3.14 Divide by 231 = US gallons E.g ( 18ft diameter = 9ft radius) 9 x 9 x 144 x 3.14 / 231 = 158 US gallons
  15. SJPoe

    Gallons per inch

    Multiply Width in feet by Length in feet. Multiply that by 144 Divide by 231 E.g. 18x36 = 648 square feet 648 x 144 = 93312 cubic inches (one inch deep) 93312 / 231 = 403.9 US gallons