Bizarre - Toilet Won't Fill

**HarryHomeowner** · 06-01-2008, 07:19 PM

I've replaced all the toilet guts, supply flex hose, shut off valve connecting to the copper, even purged/flushed the copper pipe supplying the toilet etc.

Despite all my efforts when I re-assemble the toilet everything works fine for about 4-6 flushes and then the toilet will refuse to fill. It behaves as if the supply is simply blocked.

Is there such a thing as an Air Lock in toilet plumbing?? Is there a backflow preventer in a fluid master that can slam closed so hard it can't be overcome unless you drain house pressure??

The toilet is supplied of a dedicated run to the powder room. There is a T joint that has the Vertical T going to the toilet and the horizontal continues along to the sink supply. Is it possible that the sink is venturi vacuuming a backflow valve closed??

Any thoughts would be greatly appreciated.
Thanks,
HarryHomeowner

hj · 06-01-2008, 07:25 PM

IF the water does not come into the tank, then you have a bad fill valve.

**HarryHomeowner** · 06-01-2008, 07:33 PM

I've replaced the fill valve. Water will come into the tank a hand full of times but as soon as the sink runs it will no longer fill.

hj · 06-02-2008, 05:45 AM

You have a problem unique to your house and it needs a plumber to check it out, if your description is correct, because as Spock says, "It does not compute".

**jadnashua** · 06-02-2008, 06:53 AM

Do you have one of the "floodsafe" supply hoses going to the toilet? If so, replace it with a standard item.

**HarryHomeowner** · 06-02-2008, 10:08 AM

It never occurred to me that there could be a food safe hose. I'll check and get back with you.

**Redwood** · 06-02-2008, 01:01 PM

They are Evil!

**HarryHomeowner** · 06-02-2008, 03:04 PM

Thanks a million. That saved me a service call for sure. I'll check back tomorrow and see if the midnight gremlins were at work but I'm sure that was it.

THANKS!!!!

**SteveW** · 06-02-2008, 05:21 PM

You will save some future homeowner a service call, too, now that you've taken the time to give us feedback - thanks!

Too bad about this little "design issue" with the Flood Safe line - seemed like such a good idea at the time...

**Terry** · 06-02-2008, 05:42 PM

seemed like such a good idea at the time...

It did,
Before I used them, I had thought about switching over to them.
And then I found out that they didn't allow a toilet to fill.
Dooh!

**Redwood** · 06-02-2008, 07:30 PM

At first thought it seemed like a good idea...
Then when thinking about it for a little more than a split second, reality sets in...
At that point you realize that all the Floodsafe valve is protecting against is...
A No-Burst hose bursting!

Kind of redundant isn't it?

Then I get sent to a call where a floodsafe hose failed and flooded a house!
Go figure!
The Valve failed due to cheesy construction at the point indicated by the arrow!

What garbage!