Fished a tournament on the Winter Haven Chain this past spring all the canals were about a foot or less and lots of sand. Since then the water psi has been lower than normal. Since it has gotten warmer it has dropped even more.

The psi hits 10-11psi at 4000 and up any lower RPMs it sits at 7 or so and at idle 2 psi only when I start the motor, once it has warmed up it sits at 0 it barely pisses unless I give it some gas when I was sure last year and also early this year it would piss like it drank 18 beers before breaking the seal. Note that it is hotter than hell in FL and the water temp has been 86-92 degrees.

Now last Sunday I changed out the entire water pump set up: impellor, gaskets, housing, bolts, the pins, key that holds the impellor in place everything! I also checked the t-stats and the poppit valve. I only wiped the poppit spring and the mushroom head and cleaned it out as best as I could since it is in a tight spot and stretched it out some. I checked the gauge and it works fine. Removed the tube from behind the gauge and it squirted some snotty stuff out and HOT water on my leg when I ran down the lake, but was clean after that. I also took off the head cover to expose the brass nipple that goes on top of the head and reved the motor and water shot 2-3 foot in the air. Still reading lower than I like pressure. 11 psi max WOT and 7 psi while running at or below 4000 rpm and after it has ran for a while it is at 1 or less psi at idle and a light stream coming from the pisser.

Any suggestions? Should I run water through the flush out hose with the poppit valve removed and opened? Should I replace T-stats, they looked fine just a little tiny bit of rust in the housing. Never ever seen salt water. Could it just be the warmer lake water temps? And I have not had a hot horn at all. I just want my psi back to normal. Let me know.