Recent content by Mandrake

  1. M

    AquaRite not generating chlorine

    Hi, For a month now my six year old AquaRite stopped generating chlorine. I purchased a new Hayward T-15 cell, and replaced the old one, but the "Generating Chlorine" LED only lights up after start up and then turns OFF. The Check Salt LED turns RED, and Inspect Cell LED turns orange. My system...
  2. M

    I think my pool guy mistakenly added DE to the cartridge filter

    I did get the invoice (electronic), but it's not itemized, just the total. As for Calcium, I highly doubt it, as that's not what they usually do at pool opening (usually, it's DE and shocking, I used to have DE filter). My current filter is Hayward C7030 - 700 sq feet cartridge filter - the...
  3. M

    I think my pool guy mistakenly added DE to the cartridge filter

    Hi, I just had my pool opened yesterday, and noticed today (about 24 hours later) that my filter pressure is higher than last year, when the pool was actually more dirty at opening (as I opened later). I saw one of the guys with the bucket with white liquid in it, but did not connect that they...
  4. M

    When is it OK to open a pool in Long Island

    Thanks Newdude, I am perfectly fine not swimming if the weather is bad - I like the view of the open pool way more than I like it covered :) I just want to make sure I don't ruin anything with opening too early. I was particularly concerned with the solar heater (since it's thin), but I guess...
  5. M

    When is it OK to open a pool in Long Island

    Hi, With Spring rapidly approaching, I am itching to open my pool soon. I usually open it in the middle of April (I have a mesh grid cover, so it takes 2-3 weeks for water to clear), but I am thinking of opening it sooner this year, maybe even towards the end of March. I have a gas heater and...
  6. M

    New Cartridge filter not cleaning the pool - what could be wrong?

    Would this have same effect as adding a little AquaPerl (I already have some left for my old DE filter) ? Thanks, M.
  7. M

    New Cartridge filter not cleaning the pool - what could be wrong?

    Shocked it again last night, and had almost no Chlorine Loss overnight. At 8AM this morning, my chlorine was 16.5, and my CC is under 0.5 (I used step 0.5 in Taylor kit). My pool is blue, and I am pretty sure all the algae is dead, but it's not crystal clear yet, even though ti seems better...
  8. M

    New Cartridge filter not cleaning the pool - what could be wrong?

    Just tested my water in the Pool Store. I haven't been using SWG, so Chlorine went down: FC = 7.47 CC = 0.25 pH = 7.8 Hardness = 93 Alkalinity = 50 CA = 46 Copper = 0.1 Iron = 0.1 Phosphate = 925ppb Salt = 2550 Should I use phosphate remover or wait for the filter to do it's job. Th water is...
  9. M

    New Cartridge filter not cleaning the pool - what could be wrong?

    This was exactly my thought, but I opened the filter last night, and the grids looked dirty, although there was nothing in between them. I might have to open it again today to check it.
  10. M

    New Cartridge filter not cleaning the pool - what could be wrong?

    Pressure depends on the water/pump speed, but it is non-linear. I have variable speed pump, and here is the pressure for several speeds (in RPM): RPM Pressure Power (kwh) 1100 --- 2 --- 150 1200 --- 3 --- 170 1400 ---...
  11. M

    New Cartridge filter not cleaning the pool - what could be wrong?

    Turned off SWG last night around 22:30, and measured chlorine 8 hours later (6:30 this morning). It's still about the same FC = 12 CC < 0.5 It's been at this level for about 3 days (with SWG running), and the pool is about the same too. A little visible algae, but not a bloom. My pool guy...
  12. M

    New Cartridge filter not cleaning the pool - what could be wrong?

    Thank you for your replies. I measured twice today, and got somewhat different results (especially for pH). Here they are (results in the bracket are from earlier today (6 hours ago?)) FC = 12 (12.5) CC = 0 (NA) pH = 8+ (7.7) TA = 50 ( 50) CH = 120 CYA = 40 (from last week, should not have...
  13. M

    New Cartridge filter not cleaning the pool - what could be wrong?

    Hi, I just replaced my DE filter with the biggest Cartridge filter on the market (Hayward SwimClear C7030). 725 sq. feet. My pool guy replaced it on Tuesday morning, and as of today (after about 90 of hours of filtering), the pool is still the same as it was on Tuesday, i.e. a little cloudy. I...
  14. M

    Sta-Rite Cartridge Filter?

    Hi, I was wondering if anyone has experience with Sta-Rite cartridge filters (I am interested in SM850, 500 sq feet). I was talking to my Pool Store guy about Cartridge filters, and the store manager strongly recommended Sta-Rite, saying that they are far better than either Pentair or Hayward...
  15. M

    Cartridge vs DE Filter

    Hi, Thanks for your reply. I had two different crews closing my pool for the last several years, and the results were always the same, even though I usually close mid October and open mid to late April. I was told my mesh grid is to blame, and the pool is to big and and hard to access (tricky...