Water system troubleshooting?

[gr8daggett]

Winterized my 2015 Reflection337RLS last fall for the first time. Had no trouble blowing out the lines and then sucking in anti-freeze.
A couple weeks ago I pumped fresh water thru the system using the winterizing method (water out of gallon jugs).
Had no problems clearing all the lines.

Today I hooked up a hose from the house thru a regulator (pressurized water source), reconfigured the Kant-Leak and opened up the hot water heater to fill it.
Needless to say it pushed a lot of air for a while then nothing out of the bathroom faucets (hot or cold), the shower the same and very low pressure in the kitchen (hot & cold).

Closed the hot water tank and switched back to try pumping from the jugs again. Same results.
Bathroom sinks faucets wide open ... nothing. Low flow out of the kitchen.

Very confused right now. Any suggestions for Troubleshooting steps?
Blow the lines out with compressed air?
Should that fill connection have a screened washer?
Fill the fresh water tank?

Thanks, Mike

[Country Campers]

Mike
You could put water in the fresh tank and then try with the pump that way, if it works you may have an input valve issue.
Also there should be a screen on the input hook up.

Brian