with city water connected or without? Is it clear none of the fittings at pump, filter, city water or flush connections are leaking? Photo behind the wet bay cover panel if needed. IS the leak apparent after traveling only?
The point being, do some investigations yourself FIRST before paying for outside help. It may be really simple as in a threaded connection which does loosen up over time and travel.
2020 Tiffin Allegro Open Road 32SA