could be just expensive , i know the switch ones are very expensive .
try jacksons leisure or o,learies http://www.olearymotorhomes.co.uk/
or cak tanks .
all seem very helpfull when i have used them for other things .
I’m having the same problem, kind of. But I think replacing the spout might do it. Still, I’m not sure if they sell the parts for my pulldown faucet separately. I swear all these home improvement websites— thespruce, thekitchn, healthykitchen101, etc. all of them are no help. They only cover general and common issues.