[Land Yacht]

I took the entire hose out and removed the quick disconnect coupling, then inspected the hose, no restriction there. I then put a bucket under the pipe where the quick disconnect connects to and turned on the water seems reasonable there.

I blew through the quick disconnect, and was not impressed with throughput. Could this be clogged?

I disassembled the faucet on-off handle, and pulled out the cartridge. Looked OK but did not dive into disassembling that one, so it is still suspect in my mind. I will call Grohe in the morning.