I got my CYA level down to 30 and received my TF test kit. I've owned the pool for 6 weeks and am trying to get control of it on a daily basis. This is an older pool and a lot of the plaster is discolored. When I moved in the walls were a drab olive green/ gray color with huge mottled black spots. The bottom is blue with cream colored stains and what appears to be rust stains along with black algae (the spots will not come up the a fingernail scrapping. I have found that behind a very soft plaster is green/ black algae on some parts of the wall.
I started my slam this morning.
Here are the numbers
FC16 Slam amount states 10
I will check FC at 12pm and again @ 4pm
I'll keep the pump running (My electric co loves me!)
I'll brush the pool again @ 4pm.
I know the slam is not done until I can hold the FC overnight by 1pmm and have a cc of .50
Am I scrubbing until there is no discoloration on the plaster? The walls would be a nightmare as that drab color is about 2 feet wide all around the pool.
The black spots that have appeared since I've been here should disappear with scrubbing?
Is it going to hurt if I keep the FC level at 16 as opposed to 10?
Any other suggestions?
Thanks in Advance