Connie346 wrote:OK, to clarify, 32oz Poolife phosphate remover and 32 oz SeaKlear Phosphate remover were added to the pool on 2 different days once last week and once this week. Also 4# stabilized chlorinate granules (sodium dichlor) were added last week. In addition we added 4 gal of 12.5% chlorine on 2 or 3 different occasions. No improvement.
However, today after adding a total of 15 gal of 12.5% chlorine in a 24 hr. period we are seeing an improvement....water has a blue hue, green seems to be more toward center/bottom drain.....we are excited to see this as it has been 2 1/2 weeks since it has looked this good ( and it doesn't look good yet, but I am encouraged). What to do next???? pH looks good at around 7.8 (may still be high due to shock), OTO test shows burnt orange color (still waiting for my Taylor kit)....we don't want to step back now since we see impovement. Should we add the 6-8" of replacement water now, (it is well water, which may contain iron/NOT city water)?? Should we add more chlorine tonight to be sure it stays high (sunny and 80 here today)??? Or do we just continue to filter and let the existing chlorine level work??? I appreciate all the posts, and am taking all opinions into account.....please advise if you can......thanks!!
you were stating before you had a "93" CYA, we'll call this 95 just because like ibridges said, it's impossible to know the in-between number other than halfway between 90-100. You keep adding "stabilized" granular. "stabilized" is just another way of saying "conditioner" or CYA. Adding more of that in your pool is only raising your CYA which is why you have the need for such high FC levels to effectively kill algae. I would recommend since you arent going to drain and replace, to only use your liquid chlorine until your FC is met with the CYA levels. also, a 7.8 pH is on the border for being too high. you don't want this as you will start destroying the pool surface and equipment as well as start affecting the alkalinity levels. This needs to be brought down with some muriatic acid or whatever form you have (sulfuric, pH down, etc...). Every time you add liquid chlorine or bleach, you are raising your pH levels, so this needs to be done at the same time, every time. Make sure when you have your effective FC levels, that you are holding them there until the algae is COMPLETELY dead, or all the money you have just spent will be wasted and you'll start over again. Yes, you should add the replacement water as you will be dilluting the issue some, however, you will need to chlorinate that immediately since it will also dilute the chlorine levels.
Until the algae problem is fixed, you should quit putting more phosphate remover in your pool as you should be working on killing the problem you have rather than preventing it later (it's just pouring money down the drain...or pool however you look at it).
Also, make sure you are running your filter system the whole time until this problem clears up. Sanitation is always #2 after filtration!