Not sure if this is the best board to post on, or the algae board since my need to vacuum to waste likely comes from a problem I was having with algae....that said,
I was told that cartridge filters can't vacuum to waste, but I don't know if that's true. Coming off of my pump is a spigot that allows water to freely drain when I need it to, such as when my water level is too high. I also have a valve before the filter that can be turned to prevent the water from going into the filter.
Does this setup sound like I could vacuum to waste, and if so, since I have a 2 speed filter, is it safe to use the high setting or just the low setting?
Thanks in advance.