Hello everyone, first time posting. I've got a Jandy cartridge filter and want to periodically drain water from my pool to get fresh water circulating. It's too hot in Arizona to do a complete drain without risking damaging the pool. If I'm going to use the spigot are there any watch outs to be mindful of? I'm assuming I always want to do with the pump off - I've also got an automatic refill and wanted to make sure this wouldn't potentially damage that. Thanks for any insight!