Since taking over the maintenance of my pool I have been struggling to keep the algae away. I have been through the SLAM process successfully twice now as a result of yellow algae. I have been diligently brushing and vacuuming the pool and cleaning the filter.
As per the Chlorine / CYA chart I have been keeping chlorine levels within the ranges listed for my cya levels. When I started all this back in February cya was around 60 and has gradually come down to 25 where it is now as I have been using liquid chlorine vs. the pucks which were being used before.
If I let the chlorine levels drop anywhere near the lower end of the range the algae returns. I am seeing algae again as we speak.
Current Readings
FC 5.0
CC 0.0
PH 7.8
TA 75
CH 300
CYA 25
I know TDS doesn't mean much but they are over 3000. I have had the pool for 5 years and the previous home owners did very little in the way of maintenance on the house let alone the pool so I'm assuming it has not been drained in 10+ years.
Is it time to drain it or partially drain it? My challenge is that it has been raining a lot and will likely continue to rain for the coming weeks so a full drain is not an option. What about draining water from the top of the pool with a pump and garden hose while filling at the same time using city water and a hose positioned at the bottom of the pool. i.e. cold clean water stays low and dirty warm water stays high. Let it run like that for a day?
As per the Chlorine / CYA chart I have been keeping chlorine levels within the ranges listed for my cya levels. When I started all this back in February cya was around 60 and has gradually come down to 25 where it is now as I have been using liquid chlorine vs. the pucks which were being used before.
If I let the chlorine levels drop anywhere near the lower end of the range the algae returns. I am seeing algae again as we speak.
Current Readings
FC 5.0
CC 0.0
PH 7.8
TA 75
CH 300
CYA 25
I know TDS doesn't mean much but they are over 3000. I have had the pool for 5 years and the previous home owners did very little in the way of maintenance on the house let alone the pool so I'm assuming it has not been drained in 10+ years.
Is it time to drain it or partially drain it? My challenge is that it has been raining a lot and will likely continue to rain for the coming weeks so a full drain is not an option. What about draining water from the top of the pool with a pump and garden hose while filling at the same time using city water and a hose positioned at the bottom of the pool. i.e. cold clean water stays low and dirty warm water stays high. Let it run like that for a day?
