Recently I had to turn off the water to the house due to a washing machine ordeal. Two days later the upstairs 28 year old toilet starts a trickling cistern fill. I read an answer on this site that said "Take the valve apart and clean it.". Problem is I don't see any screws inside the cistern or any "valve" except for the valve at the water flow connection (stop) under the toilet. What "parts" in the cistern can I clean out possible debris clogs AND HOW (remember no screws are visible)? I managed to disconnect the thin tube and blow through one end which produced a bubbling so I don't think there's any major clogging in that area. What else can I do to unclog any debris clog resulting from the pressure change when the water was turned off and on? Thanking and appreciating help in advance! UPDATE: I tried turning off at stop valve under toilet and flushing; then turned valve on again and IT STARTED FILLING LIKE IT SHOULD!! Alas, the next flush the slow fill was back! Aaaaaargh! What is the problem?!

Recently I had to turn off the water to the house due to a washing machine ordeal. Two days later the upstairs 28 year old toilet starts a trickling cistern fill. I read an answer on this site that said "Take the valve apart and clean it.". Problem is I don't see any screws inside the cistern or any "valve" except for the valve at the water flow connection (stop) under the toilet. What "parts" in the cistern can I clean out possible debris clogs AND HOW (remember no screws are visible)? I managed to disconnect the thin tube and blow through one end which produced a bubbling so I don't think there's any major clogging in that area. What else can I do to unclog any debris clog resulting from the pressure change when the water was turned off and on? Thanking and appreciating help in advance! UPDATE: I tried turning off at stop valve under toilet and flushing; then turned valve on again and IT STARTED FILLING LIKE IT SHOULD!!! Alas, the next flush the slow fill was back! Aaaaaargh! What is the problem??!!
Hey Lindy,
Don't despair, we're here to help. Tell us what ball cock you have,(see images) and we'll get right back to you. Cheers, Tom

Hey Lindy,
Don't despair, we're here to help. tell us what ball cock you have,(see images) and we'll get right back to you. Cheers, Tom
Hey, Tom
It's the first Image, 400A
Hope this clears up some things... Thanks!