SeaFlo water pump

Hello, our insurance won’t cover the water damage, because there is an exclusionary clause in the policy, about water seepage, etc. The roof was checked for leaks, and yes it is strange that keystone only covered the slides. However they said (that was still under structural warranty). We never had any noise, etc coming from the pump, and no flooding on the underbelly of the 5th wheel…The pump was installed horizontally on the floor. There is evidence of what looks like residue on the pump head, from pics sent to us from RV repair facility. We had the unit professionally winterized by Bishs, in 2023. And this year a diff company (that noticed) the water damage. I sent a very diplomatic letter to SeaFlo, they asked for pics, serial number, pics of the damage… (the next email, said the pump can only handle 30 psi incoming pressure, anything over that… It will leak as stated in their manual… And they also said… Sorry for your inconvience, but SeaFlo will not pay for (labor/ damages done to my unit)…I emailed them back,  asked for a manual, took 4 days to respond…. Again they referenced in the manual…incoming pressure at 30 psi. However, the paragraph also referenced (try to avoid any pressure completely???).. Obviously I don’t much about all this, thus why I’m posting here. However, I’ve read on other forums, peeps have had these pumps leak…