Almost burned up my motor

[FurFlyin]

Had a buddy from Ohio come down this week. We fished in the hurricane winds Thursday, then fished Friday and yesterday. Friday we ran a lot. I was heading down river Friday and my motor lost power and the alarms started blaring. I immediately turned off the engine. I turned around and looked at the motor and steam/smoke was pouring out from under the cowling. I cranked the motor and no water was coming out the pee hole. I shut it back down. Walked to the back of the boat and trimmed the motor up. There's a bowling ball sized wad of EELGRASS on my lower unit. I've heard of floating plastic bags ruining an engine, but never eelgrass. Since I haven't said it in a month, I HATE THAT STUFF.

Thankfully the engine seems to be fine. I haven't checked compression on it and likely won't but I will be rebuilding the water pump AND I'll be installing a water pressure gauge. I can't believe there are boats built that don't have those from the factory but apparently G3 thinks they're optional.

I have a Solix on my console and there is a screen on it with "gauges." Can anyone tell me what I'd need to make my 2016 Yamaha SHO 115 "talk" to my Solix? At this point I'd rather spend more money than try to install a pressurized line water gauge on the center console. Not sure my nerves could survive fishing that hose through there and trying to keep it from getting kinked or crushed.