This is the progress I've made today on my BB UMB primary. The pump needs a little more effort than I'd like. The OPRV kicks in nicely at 2 pumps. The check valve in the stub of the tank works nicely. It seems accurate. The trigger is a length of vinyl tubing! This is as close as I have come to a homemade and I'm really surprised that it works. It's getting 110'+ with glue domes and no tweaks. Of course this is still beta.
What pump is that? It sure sounds efficient.
ReplyDeleteIt's a really cheap MacGregor ball pump. $5! But it has good volume and a decent seal. I removed the check valve and drilled a slightly larger outlet hole.
ReplyDeleteAlso the check valve at the tank reduces the volume it needs to pressurize alot. Still I'll likely have to do a dual action pump on the 2 tank version of this to keep the # of pumps low.
Thanks for the interest Chananio!