I have been managing my pool the TFP way this past year and I've read the information on here about closing an inground pool. A pool professional is going to close my pool on Wednesday since my water is now below 60 degrees. Last year, he put in a copper algecide that stained my pool so I'm not going to let him add any chemicals this year and prepare the water for closing myself. I've read the information on this site and I'm having a hard time deciding whether or not I should close at shock level or close at normal chlorine levels with polyquat. To help me make this decision, I have a few questions that I'm hoping one of the TFP pros or experienced pool owners on here can answer for me.
1. If I decided to use Polyquat 60, directions on here say that it has to be added to the water at my normal chlorine level which is 7 ppm, and several posts say that it will decrease chlorine levels after it is added. If it decreases chlorine levels by half or more and we get some warm days this fall or winter, will the polyquat protect my water from an algae bloom? If it decreases chlorine levels a lot, can I add more chlorine before closing or will this oxidize the polyquat and make it ineffective?
2. If I decided to close at shock level instead (which is 24 ppm), would the high chlorine levels over a long period of time damage the walls or floor of my fiberglass pool, damage my mesh loop lock cover (which already has a few small holes), or damage the grass when all of this heavily chlorinated water is pumped into my yard when it is drained before closing?
3. In years past, my pool pro has added Pool Magic Plus Phosfree right before closing since my phosphate level is always high prior to closing because of all of the leaves that fall into my pool this time of year. Is this chemical necessary and/or helpful, and is adding it right before closing while only running the pump a few minutes the correct way to add it?
4. Since my pool closing is scheduled in 3 days and there isn't enough time to get my pool to shock level and back down to normal levels, should I just increase my shock level to 10-12 ppm instead since my CC is less than .5 and water is clear? Pool is consuming only 2 ppm of chlorine right now because the water is so cold so if I shock to 24 ppm tonight, the water will only be 20 ppm in 2 days when the Polyquat would need to be added, which is too high.
1. If I decided to use Polyquat 60, directions on here say that it has to be added to the water at my normal chlorine level which is 7 ppm, and several posts say that it will decrease chlorine levels after it is added. If it decreases chlorine levels by half or more and we get some warm days this fall or winter, will the polyquat protect my water from an algae bloom? If it decreases chlorine levels a lot, can I add more chlorine before closing or will this oxidize the polyquat and make it ineffective?
2. If I decided to close at shock level instead (which is 24 ppm), would the high chlorine levels over a long period of time damage the walls or floor of my fiberglass pool, damage my mesh loop lock cover (which already has a few small holes), or damage the grass when all of this heavily chlorinated water is pumped into my yard when it is drained before closing?
3. In years past, my pool pro has added Pool Magic Plus Phosfree right before closing since my phosphate level is always high prior to closing because of all of the leaves that fall into my pool this time of year. Is this chemical necessary and/or helpful, and is adding it right before closing while only running the pump a few minutes the correct way to add it?
4. Since my pool closing is scheduled in 3 days and there isn't enough time to get my pool to shock level and back down to normal levels, should I just increase my shock level to 10-12 ppm instead since my CC is less than .5 and water is clear? Pool is consuming only 2 ppm of chlorine right now because the water is so cold so if I shock to 24 ppm tonight, the water will only be 20 ppm in 2 days when the Polyquat would need to be added, which is too high.