Heat between the wear ring and impeller when ran too long dry.

Ralph Brunt can answer your question!

Ralph Brunt can answer your question!

you beat me too it

here are some pics !

i couldn't have said it better

so how long is too long. it's a new rebuild i realize that makes it worse/tighter i have a hose therfore water. i just want to hear it before i tow it to the lake, if spraying water up its ass would help i'll do that.

Don't run it dry at all; simply hook up a hose with a splitter or 2 hoses:
I'd never run without water, however, can run all you want if running water in it:
If you run water thru the pump, there is NO PROBLEM running it out of water.
I used flytime's idea: put a hose splitter on the hose; one hose from splitter has male connector, the other has female; disconnect interior hoses then connect to splitter hoses; turn pump water on before turning engine; turn engine water on after engine starts.
I read much on this; many say never do it, BUT, flytime told me he checked with Berkeley directly, then I emailed Berkeley and got a quick reply that it is NO PROBLEM if running water in the pump.
In fact, the Berkeley guy said run a hose up the nozzle; but it's better to disconnect the inside hose and run it directly into the pump (connecting another hose to run thru the engine to cool).
http://www.socaljetboats.com/index.php?topic=2493.msg33651#msg33651

Tim,

I wouldn't say there is "NO PROBLEM" doing that....yes, its better then running it dry, but I personally still wouldn't recommend it.

Also, from what I have heard, the people who run Berkley now don't know crap about their own product. They cant answer basic technical questions about the pump. So based on that, I still wouldn't take what they say as fact. People like Tom at JBP, Jack at MPD, Jim at Cyclone, Shoemaker at GS Marine, etc know much more about Berkley then Berkeley themselves know. So if they say "dont do it unless you have to" ...I wouldnt say it's "no problem".

-Brad

Point taken; those folks surely know more than me; I still feel that as long as water is running thru the pump, just as it would be on the water, it should be fine; but I'll be sure to remove the 'no problem' if I post this again and make it an IMO.
Now go watch that gas tank 

You could always get a jet-a-way and not worry about it. $$$$

dont have the room even with the setback pump.

If only I had a clutch

As a general rule of thumb, 2 minutes MAX with the hose. Don't do it often. Asking Berkeley "proper" is worth nothing, they've been bought out something like 3 times since their beginnings. They have ZERO original employees, and ZERO information aside from books and charts left behind. They don't even manufacture, let alone detail their own parts anymore. They send most of their work to a little shop in Mexico, kinda like Basset Headers....

any additional water is helpful.

Just wait til you get home. unless you're running in salt water your internals wont corrode THAT fast! Well I don't know about elsinore/ming water though... looks kinda nasty to me. BTW its supposed to rain for a week straight starting tomorrow.

I only woke up to 8" of snow today, but my sister has 2 feet and it's still going here in SLC. Thats my problem all the water here is slightly firm.