Neighbor's pool green - asked for my help

[pgershon]

Green water. I went over and measured FC=0 CYA=0. She said her pool man put 5 gallons of liquid shock in pool earlier in the week. Sand filter is set to recirculate and leaking from top (and has no pressure gauge). Looks like 20,000 gallon pool. I said she needs a new pool company. But for now, I suggested she put in chlorine and do a SLAM. But does she need to add CYA ? Would getting CYA to 30 be helpful before SLAM? Also, i assume filter should be in filter mode and not recirculate.

 

[Flying Tivo]

SLAM Process is very straight forward.
Add CYA 30ppm
lower Ph 7.2
Raise FC 12ppm and maintain as often as possible.

The most importan part is getting your neighbour the proper Test Kits Compared

 

[Jimrahbe]

p,

Is there anyone there that can clean the filter? I suspect it will clog in a day or less.

Thanks,

Jim R.

 

[Flying Tivo]

You can leave the filter in recirculate until the water looks more of a blue-grayish color. Then start filtering.

 

[jedigrover]

I bet it's in recirculate because of that missing pressure gauge. A new gauge is only $10. Is that all that's wrong with the filter? Better have a deeper look at it to know.

 

[pgershon]

That is probably why the pool company left in recirculate. I bet filter already clogged. She has them coming back at 1 PM today. I told her to make sure they add stabilizer and not just liquid chlorine. Problem is that they dont like to get their hands dirty. I brought over my test kit today, but that's a one time shot...

Thanks for the feedback