I can pour a little liquid out of my rain x line where it connects to my injector. When I start my presoak it sucks the rain x up to the injector. I took the hose off to the bay from my rain x injector and it shoots liquid out briefly when I energize my presoak. It seems to seal off as quick as the pump starts. Is this normal? I started checking this because my chemical guy said he couldn't get my PS to titrate. He thinks the rain x is mixing with the PS. I don't see how that is possible as the rain x valve seals up as quickly as it starts.