I’m putting together a system and setting up 2 pumps with a 8ft head height and was wondering if it would be better having a 4 roller dos head or 2 and also wondering if it would stop back feed from tank to dos to drain. Thanks
Personally I'd go with the DOS (at least if you have any concerns with height or distance). You can always place a check valve on the DOS tubing, but I don't think it will be an issue.
