Trying to clean up pool-swamp; Pentair DE filter stops up almost instantly

[PoolDoc]

2.5 is too low, when you are cleaning swamps. You need to add chlorine till you see a DARK yellow result, darker than is shown on the test block. Dose in the late PM; test in the early AM. Most likely, you have no stabilizer (it's been biodegraded), so you'll lose chlorine during the day, depending on the cloudiness.

I should have mentioned it earlier, but if you have valving that allows you to BYPASS the filter, do so. It will help to circulate the water, even if you can't filter yet.

One point I hadn't mentioned yet: once the pool is fully gray -- no green tint remaining -- you need to sweep the pool. There's a good chance that there are algae piles on the bottom. Do NOT disturb these till the algae in the WATER is dead. Once you're ready to sweep, add another LARGE dose of chlorine, and then sweep after doing so. If you fail to add the chlorine dose first, you can start up your pool algae all over again. Ideally sweep in mid to late afternoon, and then check the pool again before it gets dark. If there IS a bunch of algae on the bottom, the pool may go immediately green, BUT if you've dosed adequately, it should return to gray within an hour or two. If it does not, add an additional dose of chlorine before it gets dark. Check again in the AM; if it's at all green, test with OTO, and if you do not get a DARK yellow result, add yet another dose.

[Rrb22286]

I have added stabilizer it's a lil low still be not to bad. I do have the pump on recirculate not through the pump. It has gone to a really light green I did scoop out some more debris from the bottom before I added the bleach last night hard to tell if I got it all. But I'm pretty sure most is out. It has had 2 years of stuff on the bottom due to the last owner not having it running starting to think I should have just drained it. Ha. But I will give it another dose of chlorine

[PoolDoc]

I can't emphasize this enough: like Yoda said, "Do, or do not. There is no 'try'".

With algae, if you're not winning, you're losing. Do NOT sweep till the water is gray. Do NOT be conservative in how much chlorine you add. (But, do not dump chlorine powder on the liner, unless you want a bleached liner!). Do NOT let it be green!

"really light green" = You are LOSING! You will be very unhappy, if you personally discover how fast established algae can re-grow, rendering all your work to date pure wasted effort. Add chlorine till it's gray, THEN clean and sweep . . . and add more chlorine!

The amount of chlorine needed to clean a swamp is HUGE. If you have the valves to do it, vacuum piles of algae sludge to waste.

[Rrb22286]

Added another ten gallons last night checked the cl lvls this morning and they are still passed the scale of the oto but it's still very light green add more bleach tonight or should I vacuum some algae to waste?

[PoolDoc]

If you have the capability to vac-to-waste, yes, that would be good. Just make sure the chlorine is high when you do ANYTHING to stir it up.

[Rrb22286]

If you have the capability to vac-to-waste, yes, that would be good. Just make sure the chlorine is high when you do ANYTHING to stir it up.

Yes i have a multi port valve.. As of this morning it was still past the oto scale almost home to check it again but I got more bleach.