Replies to This Discussion

Permalink Reply by Paul Spencer on April 6, 2011 at 9:58pm

As I understand it… the first tender was pumping at 50 psi, the second tender was at idle. Both were connected to your intake manifold, one on each side? If you think of your intake manifold as a hollow metal box with a bunch of valves connected to it… both tenders connected to the same box with valves open the water will pass through the box and go to the other tender. If you really want to mess with the other tender operator the one tender can throttle up even higher and push water backwards thru the “tender at idle’s” pump and overflow the other tender.

Permalink Reply by Bill Anderson on June 12, 2011 at 4:17am

I had that happen tonight. One tanker was supposed to be pumping to the engine at 70psi. For some reason he increased his pressure to 110psi. Had another tanker on the other inlet and he was back filling. I don't know what was going on with the first tanker, but his pressure was running from 60 to 110 constantly. I don't think he knew what he was doing.

Permalink Reply by Paul Spencer on June 12, 2011 at 8:49pm

Many times an engine or tender with pressure all over the place the reason is they have the electronic pressure governor in rpm mode.

Permalink Reply by August Martin on November 10, 2011 at 9:13pm

No seal problem, the steamer on each side of your pump are common to each other. It is one  big chunk of casting that makes up the pump body.  The pressure the tanker operater  identified at idle was residual pressure your pump was not using for the amount of water you were using. If you were discharging from a small line and the tanker that was suppling you pressure with a larger hose your pump would add pressure to the discharge line and the remaining pressure from the supply tanker would travel to the tanker at idle.