On Jun 18, 10:31*am, dpb wrote:
On 6/18/2012 8:35 AM, DerbyDad03 wrote:
...

I was able to find a replacement O-ring at a mom-and-pop hardware
store few years ago, but I tried a number of different sizes from the
same source last week and I can't get it to seal anymore. I guess
there won't be a $0.50 fix this time.

Yesterday, I bought a replacement regulator and hose from Home Depot

...

What I don't know if whether silicon is "propane-proof" or will the
propane eat through the silicon.

Your thoughts? Thanks.

It's not a kludge I'd want to try, particularly, whether I knew the
interaction or not. *It "just ain't right" and w/ gas, whether natural
or LP there isn't much room for error even though a seep there isn't
likely to be a major problem, still w/ propane being heavier than air
and all so what does leak doesn't just fly away like NG...

Don't know where you're located but surely there's an industrial supply
that can match the o-ring--here it's the gasket store that goes by the
name "MYHOMETOWN Gasket Supply"...I've never had anything they couldn't
match from tiny garden sprayer nozzle to 6" metal (and that's just
getting started for them for the oilfield folks that are their primary
customer base out here).

--

I have a Grainger store fairly nearby that I could try.

Thing is, the hardware store I went to has a fairly large assortment
of O-rings (60 maybe?) and a couple of years ago I was able to find a
replacement from the same source, going through the same bins. I
brought the nipple and regulator in last week and thought I found a
match. When it didn't worked, I tried 3 other sizes but none of them
worked.

I'm thinking that there may something wrong with the mating surfaces,
so I chose to replace the whole part.

The thing that sucks is that the replacement part leaks in the same
spot! Hopefully it's just a defective item.