I did the same this weekend Ruben. I use it for my trees so it waters nice and deep. sprinkler systems usually don't water trees well since they are only on for 10 or so minutes. So mine got at least 400 gallons and that should last them till next month. Haha. I need to check my ratio next time though. Thanks for the reminder buckeye! Might need a new to membrane if not(already had the other filters).