Problem with service valve connection

[Crandle]

Hi - I've replaced the service valve on the water feed to my toilet. It's screwed on fine on the bottom but the top connection to the nylon fitting doesn't screw on. If I remove the plastic washer it will screw on but it doesn't seal. It won't even fit on with the old washer, which is flattened. Any ideas? Are all service valve nuts standard? I don't actually need a service valve if there is an easier fix. Help appreciated.

 

[Deleted member 120897]

It should go on, if it screws on without washers. Can you post a photo?

 

[NBRdan]

It should go on, if it screws on without washers. Can you post a photo?

To me this is just what plumbing is about. Luck favours the prepared. So I come to the job with straight, angled tap isolators and irons. Also 4 or 5 different flexible hoses if they can be fitted. Flexi hoses are not ideal as they fail after 10-15 years or less as they are made so cheaply these days. I try to always use brass shanked fillers as well because the brass can strip the plastic thread. As mentioned by ChrisB photos would be helpful. Or just accept defeat and call a plumber. 🥴

 

[ShaunCorbs]

Try loosing the nut that holds the ball / float valve into the toilet

 

[king of pipes]

Screw it to the plastic part first then tighten the bottom nut or take the opportunity to change the inlet valve to a brass tail one . Kop