I’m getting ready to close my pool soon and I’m wondering if I should increase CH since it is only 200 and increase CYA since it is only 30 since these values will likely go down over the winter because of the rain addition. I normally have to drain water out every month or two to keep the water level below the tiles all winter. Water temperature is already down to 65 degrees so I wasn’t sure if CH increaser and stabilizer would dissolve very well in cold water. I can’t run the pump at night after adding these powdered chemicals because so many leaves are blowing into the pool right now. I’m particularly worried about closing with such a low CH level since I’ve read that low CH can cause staining and I get a lot of leaves in my pool over the winter which could potentially stain the pool. Since CH and CYA will likely go down more because of the water addition, should I increase CH and CYA levels before closing or should I go ahead and close since these chemicals might not dissolve very well in cold water?