Plumbing Unloader

[mgcmike]

Stock from P.P.

Question is… Can’t I eliminate the loop and run it straight out back to the tank? I don’t see what purpose it serves looping back into the incoming flow , especially since it’s only “trickling out”. If you look the way the hose is plumbed going to the tank it collapses.
Also I think I remember @Innocentbystander saying 1/2 is too big for a bypass line. I could be mistaken though.

[sgb]

I’m not sure what that loop is even for.

[mgcmike]

My exact thoughts. It’s been running fine but I’m trimming the fat on plumbing.

[Infinity]

No problem with half inch bypass line.

Flow actuated unloaders (which yours is not) do like a bit of back pressure on the bypass, and some people accomplish that by using 1/4” pressure hose. I prefer to put an appropriately sized orifice in the flow path and then use 1/2” line so that the stream going back into my tank doesn’t cause a bunch of bubbling.

[mgcmike]

K7 is on my list. I’ll get rid of the loop and plumb it straight through.
Thanks

[sgb]

Maybe it’s supposed to be some sort of safety in case the unloader craps out. I’m not sure. I know it’s not necessary but while you’re talking with pressure pro I’d probably try to figure out what it is for.

[Hotshot]

I’m thinking it’s safety related as well,I don’t see a thermal relief valve, on it.

[Kps0410]

this is mine after swapping over. I had the same as you until a couple of weeks ago