3550bh

[timsos]

Anyone know how to access back side of water heater on this model?

[geotex1]

You have to take down the false wall/bulkhead in the pass-through storage. You'll note there are minimal screws holding up the carpeted panels, and many of us end up doing mods to make access even faster.

[timsos]

Thanks, couldn’t find any resources saying where it is. I’m thinking something is in check valve coming out of it.

[geotex1]

Thanks, couldn’t find any resources saying where it is. I’m thinking something is in check valve coming out of it.

Why? Is your water not hot enough? If so, check that the outside faucet is actually turned off first by the handle valves to see if it solves it (common oops).

[timsos]

Yes, it’s maybe half of the cold water pressure and that’s being generous. I have cleaned hot water tank, checked those handles, drained low points and checked pressure running on board pump. I’m thinking check valve cause it was good.

[geotex1]

Yes, it’s maybe half of the cold water pressure and that’s being generous. I have cleaned hot water tank, checked those handles, drained low points and checked pressure running on board pump. I’m thinking check valve cause it was good.

Sounds like you're on top of it. The RV style checks are very light duty poppet-type, with the Valterra probably being the best in that space to replace the plastic one yours likely has from the factory. If you have a plumbing supply near you, LF600 Maxi-Flo check is a nice, reliable upgrade too.

[timsos]

You wouldn’t happen to know the size off band do you? If so I’ll pick one up this afternoon.

[geotex1]

You wouldn’t happen to know the size off band do you? If so I’ll pick one up this afternoon.

Yep, 1/2" NPT and male threads either end. So if you get an LF600 you'll need some short pipe nipples as the threads are female.