hey all, i was doing some readings and saw some people convert the cartridge filter to a spin on filter with companies lile baxter and some people were doing it since they said spin on has adbv while some cartridge filters don't have any. i did some reading any was curious, do we have a adbv built into our canister/cartridge? or do we have no adbv? if so, that kinda sucks for dry startups eh?