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Posted by Speedy Jim on May 11, 2008, 5:43 pm
D J wrote:
>
>>D J wrote:
>>
>>>Hi,
>>
>>>I am planning to install the BP for myhouse myself.
>>
>>>For test, I did a test install using just a couple of joints and some
>>>BPs. I have bought a air test meter and I put 20 PSI in the pipe over
>>>night. Morning I have lost about 0.5 PSI.
>>
>>>Is this normal? due to temp? Or I need to tighten my pipes more..
>>
>>>Also, any advise on extending the wrench handle. I have 12 inch pipe
>>>wrench.. someone told me we can put a pipe as an extension and use it
>>>like 18 inch wrench.. Good idea?
>>
>>>BTW, in the above experiment I am using 1 inch pipe and 3/4 inch
>>>pipe. Used pipe compound also (Hercules compound, made for Gas line
>>>connections)..
>>
>>>Will appreciate any expert insight..
>>>DJ
>>
>> The 1" pipe may need the 18" leverage, but don't overdo it.
>>
>> How many feet of pipe were in your test setup? The length
>> greatly affects pressure loss seen. Short lengths exaggerate
>> any loss.
>>
>> Whatever you are using to valve off the inlet to the test can also
>> leak, so don't overlook that. Try some soapy solution on all joints
>> to check for leakage. The commercial leak-test liquids work even
>> better.
>
>
> Hi Jim,
>
> Thanks for the reply.
>
> It was not more than 3 feet install. I just tried to do an U
> connection. 1 inch, 3/4 inch pipe and used cap, elbow(decreasing) and
> then the gauge. You are right that the pressure gauge was losing some
> air, so i had to tighten t too. also used compound there. I also used
> a soapy water and did not see any immediate bubble. But, as you
> mention i may try the professional solution. this time I used my kid's
> bubble solution..
>
> It is difficult job but not that difficult. From your experience, do
> you suggest to start the piping from the appliance end or from the
> main gas meter connection end... i am thinking to start from appliance
> end and fitting one by one and testing in between for air leaks..
>
> Also, was thinking to get some extra hands if needed to.. I tried my
> best, but not sure if my best was good enough.. that's why I am doing
> all kind of checks, before putting it final.
>
> regards,
> DJ
Normally done from the meter and branching down in size as you go.
If there is a possibility of other appliances being added later,
include a couple of TEE's in the 1" line along the route.
Don't forget to make a "dirt leg" or "drip" just before the
appliance. Here is one example, but local requirements vary widely:
http://www.ketteringoh.org/newweb/pdfs/planning/water_heater_info.pdf
Jim
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