I have high CYA in a drought area with temporary bans on draining pools and temporary high rates above 12,000 gallons/month. I am considering lowering my CYA by using pool water to irrigate my yard. Takes a long time and uses more water, but hopefully no net extra consumption.
To test this idea I shut off my irrigation and this weekend watered via the waste on my multi-port. My watering lowered my pool 3" which was 1,500 gallons or a 5% drain. With my CYA of 160 it would take me 27 weekends using this method to get to a CYA of 40. That is 40,000 gallons over 6 months (probably longer since if we get any rain this winter I wouldn't water). By comparison, should the city not punish me, a one time 75% drain of 20,000 gallons would cost $360. Of course most of this would go down the drain as I only need 1,500 gallons a week to irrigate.
I found a lot posts from people in my same situation in the past. Has anyone ever gone the route I am proposing, and if so were you happy with your choice or did you wish you just bit the bullet and did the one time drain? To do a drain over 1/3 I would need to have a "pool professional" sign off on a form saying I have an urgent need to drain. Not sure I could get a PB to care enough about my high CYA to sign that form.
My chart on how long consecutive 5% drains would take to get to a CYA of 40.
To test this idea I shut off my irrigation and this weekend watered via the waste on my multi-port. My watering lowered my pool 3" which was 1,500 gallons or a 5% drain. With my CYA of 160 it would take me 27 weekends using this method to get to a CYA of 40. That is 40,000 gallons over 6 months (probably longer since if we get any rain this winter I wouldn't water). By comparison, should the city not punish me, a one time 75% drain of 20,000 gallons would cost $360. Of course most of this would go down the drain as I only need 1,500 gallons a week to irrigate.
I found a lot posts from people in my same situation in the past. Has anyone ever gone the route I am proposing, and if so were you happy with your choice or did you wish you just bit the bullet and did the one time drain? To do a drain over 1/3 I would need to have a "pool professional" sign off on a form saying I have an urgent need to drain. Not sure I could get a PB to care enough about my high CYA to sign that form.
My chart on how long consecutive 5% drains would take to get to a CYA of 40.
Week | CYA |
0 | 160 |
1 | 152 |
2 | 144 |
3 | 137 |
4 | 130 |
5 | 124 |
6 | 118 |
7 | 112 |
8 | 106 |
9 | 101 |
10 | 96 |
11 | 91 |
12 | 86 |
13 | 82 |
14 | 78 |
15 | 74 |
16 | 70 |
17 | 67 |
18 | 64 |
19 | 60 |
20 | 57 |
21 | 54 |
22 | 52 |
23 | 49 |
24 | 47 |
25 | 44 |
26 | 42 |
27 | 40 |