No questions yet, but sure there will be

[SublimeZ]

New guy with OLD pool. 16x32, 3-6' deep, circa 1978. I currently hate it . Gonna clean DE filter tomorrow. Hoping it resolves issues (de in pool, polaris 360 doesn't work, etc.) Thanks for listening.

[Watermom]

Welcome to the Pool Forum. Hope we can make you learn to love your pool! Regarding one of your statements --- If you have DE in the pool, then you have filter issues like maybe a torn membrane.

[SublimeZ]

Welcome to the Pool Forum. Hope we can make you learn to love your pool! Regarding one of your statements --- If you have DE in the pool, then you have filter issues like maybe a torn membrane.

Thank you

Not certain it's de, may be dead algae (crossfingers) Think it was time...

[PoolDoc]

Pool => 17K gallons, PF = 7
1. Kill the algae, first. DE filters don't do well with live algae.
2. Add 6 gallons of plain 6% household bleach, tonight. Pour it around the pool. (Bleach splatters: wear shorts, or pants you don't like!)
3. Buy a cheap OTO / phenol red kit, and order a K-2006 (See test kit info page in link)
4. Buy some DE, like this:
Diatomaceous Earth Pool Filter D.E. 25 lbs @ Amazon



You can order from Amazon, but get at least 10# locally if you can - should be enough for at least one filter load.
5. Do NOT start your filter till the algae is dead. If you can bypass the filter, or lift out the internals, run the pump WITHOUT the filter.
6. Keep adding 6 gallons of bleach each EVENING, till the algae is dead. (blue / gray => no green, even when you brush the bottom.)
7. Test the pH in the evening BEFORE adding bleach (high chlorine screws up phenol red tests). If the pH is above 8.0, add muriatic acid, about 1/2 gallon at a time.
see Using-Muriatic-Acid-to-Safely-Lower-Your-Pools-pH
8. If the pH is below 7.0, add 20 Mule Team Borax, 2 boxes at a time, SLOWLY to the skimmer, with the pump running.

Let us know what happens. Report test results as soon as you get the K-2006

[SublimeZ]

uh oh, already cleaned and restarted. Figured I'd have to clean the filter again in a week or 2. Just added 2 lbs of dupont multifunctional shock. Should I still use 6 gal's bleach tonight?

[PoolDoc]

uh oh, already cleaned and restarted. Figured I'd have to clean the filter again in a week or 2.

If the pool is green, and you added DE, try: "about 4 hours, if you're lucky"! Live algae stops up DE filters in a heart-beat. Kill it first.

Just added 2 lbs of dupont multifunctional shock.

We write that, "Multi-functional mess". Do you have more? If not, don't get any more. If you do, post the EXACT product name, so we can if you can use it without messing up your pool.

Should I still use 6 gal's bleach tonight?

Yes!