I think i have used every combo of valves to drain the spa and i have yet to get it to drain. The Easy Touch 8 even has a label with drain spa on it, yet nothing. I can slow the flow of water to the spa but not totally. Pool/spa are only 6 months old and the spa bottom has areas in plaster that are rough and dirt and trash sit in which the wall brush either can not get to or will not scrub out the dirt with the wall brush. I can see this being a problem area when it warms up and algae season starts. I want to clean/maybe seal or fill these areas but can't do so until i can drain spa. So is it in the way the plumbing is run that you can't drain a spa or is it just me not hitting the right valve combo to get it to drain?