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Subject Author Date
Air in pex water line Gary 03-18-2009
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Posted by Don Ocean on March 21, 2009, 1:57 am
The King wrote:
> On Fri, 20 Mar 2009 17:14:26 -0700, "kool"
>
>>>>>>> Gary wrote:
>>>>>>>> I installed 4 grohe thermostatic valves today with volume control
>>>>>>>> valves. 3 showers and one tub. I ran water to them and found that two
>>>>>>>> of them would hammer when turning off the volume valve. Because I
>>>>>>>> used pex I can see that there is air in the lines. >>>> I just tested
>>>>>>>> my pressure and it is at 85psi. Could that be causing the
>>>>>> hammering?
>>>>> Pressure popoff valves are set at 50 to 65 lbs. You can still install
>>>>> air compression chambers that should alleviate that.
>>>> I hope you're not suggesting that water heater T&P valves have a 50 to
>>>> 65 lb set.
>>> Home boiler valves are set at 30, mikey... Please don't cry. Most new
>>> water heaters have an expansion tank and a erwliwf valve, mikey as does
>>> the boiler. You are making Stormy look brilliant by your antics. ;-)
>>> I suppose you are also an expert in nuclear physics too. You Union guys
>>> are hilarious.
>> I think the OP is talking about a domestic hot water heater, not a heating
>> boiler, hence the shower and tub referral.
> Don't try and confuse him.

I was just trying to keep Mikey from crying. Stormy one up manshipped
him again. ;-p


Posted by The King on March 21, 2009, 10:53 am
wrote:

>The King wrote:
>> On Fri, 20 Mar 2009 17:14:26 -0700, "kool"
>>
>>>>>>>> Gary wrote:
>>>>>>>>> I installed 4 grohe thermostatic valves today with volume control
>>>>>>>>> valves. 3 showers and one tub. I ran water to them and found that two
>>>>>>>>> of them would hammer when turning off the volume valve. Because I
>>>>>>>>> used pex I can see that there is air in the lines. >>>> I just tested
>>>>>>>>> my pressure and it is at 85psi. Could that be causing the
>>>>>>> hammering?
>>>>>> Pressure popoff valves are set at 50 to 65 lbs. You can still install
>>>>>> air compression chambers that should alleviate that.
>>>>> I hope you're not suggesting that water heater T&P valves have a 50 to
>>>>> 65 lb set.
>>>> Home boiler valves are set at 30, mikey... Please don't cry. Most new
>>>> water heaters have an expansion tank and a erwliwf valve, mikey as does
>>>> the boiler. You are making Stormy look brilliant by your antics. ;-)
>>>> I suppose you are also an expert in nuclear physics too. You Union guys
>>>> are hilarious.
>>> I think the OP is talking about a domestic hot water heater, not a heating
>>> boiler, hence the shower and tub referral.
>> Don't try and confuse him.
>I was just trying to keep Mikey from crying. Stormy one up manshipped
>him again. ;-p

Back peddle noted.

Posted by Don Ocean on March 21, 2009, 1:55 am
kool wrote:
>>>>>> Gary wrote:
>>>>>>> I installed 4 grohe thermostatic valves today with volume control
>>>>>>> valves. 3 showers and one tub. I ran water to them and found that two
>>>>>>> of them would hammer when turning off the volume valve. Because I
>>>>>>> used pex I can see that there is air in the lines. >>>> I just tested
>>>>>>> my pressure and it is at 85psi. Could that be causing the
>>>>> hammering?
>>>> Pressure popoff valves are set at 50 to 65 lbs. You can still install
>>>> air compression chambers that should alleviate that.
>>> I hope you're not suggesting that water heater T&P valves have a 50 to
>>> 65 lb set.
>> Home boiler valves are set at 30, mikey... Please don't cry. Most new
>> water heaters have an expansion tank and a relief valve, mikey as does
>> the boiler. You are making Stormy look brilliant by your antics. ;-)
>> I suppose you are also an expert in nuclear physics too. You Union guys
>> are hilarious.
>
>
> I think the OP is talking about a domestic hot water heater, not a heating
> boiler, hence the shower and tub referral.

That was noted.. My second response was to play with Mikey.
>
>

Posted by The King on March 20, 2009, 11:23 pm
wrote:

>The King wrote:
>> wrote:
>>
>>> Gary wrote:
>>>>> Gary wrote:
>>>>>> I installed 4 grohe thermostatic valves today with volume control valves.
>>>>>> 3 showers and one tub. I ran water to them and found that two of them
>>>>>> would hammer when turning off the volume valve. Because I used pex I can
>>>>>> see that there is air in the lines. I have let them run for about 20
>>>>>> minutes but the air doesn't want to come out. I can't see it when the
>>>>>> water is flowing, but when I turn the water off I get the hammer noise
>>>>>> and then the air appears and it looks like it comes out of the valve into
>>>>>> the pex.
>>>>>> Will this air come out of the water line with use? Or is there something
>>>>>> I should do? I would like to make sure that my pipes wont be hammering
>>>>>> once I have my drywall installed.
>>>>>> Thx
>>>>> They make PEX in clear Material that you can see through? I have not seen
>>>>> that before. As for the water hammer , just install air containing
>>>>> Hammer chambers above each faucet, valve or whatever. The compression of
>>>>> the air in those chambers will remove the hammer. Or you can purchase
>>>>> units that do the same thing only with a bladder etc. The PEX we use for
>>>>> hydronic heat must be a bit different in material then yours. Ours comes
>>>>> in Red or blue colors and is rated for potable water.
>>>> The Colored Pex here is heatpex (red) and you can use it for potable water
>>>> but it is twice as expensive as the regular stuff. Our domestic water pex
>>>> comes in white and clear.
>>>> I just tested my pressure and it is at 85psi. Could that be causing the
>>>> hammering?
>>> Pressure popoff valves are set at 50 to 65 lbs. You can still install
>>> air compression chambers that should alleviate that.
>> I hope you're not suggesting that water heater T&P valves have a 50 to
>> 65 lb set.
>Home boiler valves are set at 30, mikey... Please don't cry. Most new
>water heaters have an expansion tank and a erwliwf valve, mikey as does
>the boiler. You are making Stormy look brilliant by your antics. ;-)
>I suppose you are also an expert in nuclear physics too. You Union guys
>are hilarious.

I didn't think you had a clue. Now I'm sure.


Posted by Don Ocean on March 21, 2009, 1:58 am
The King wrote:
> wrote:
>
>> The King wrote:
>>> wrote:
>>>> Gary wrote:
>>>>>> Gary wrote:
>>>>>>> I installed 4 grohe thermostatic valves today with volume control
valves.
>>>>>>> 3 showers and one tub. I ran water to them and found that two of them
>>>>>>> would hammer when turning off the volume valve. Because I used pex I can
>>>>>>> see that there is air in the lines. I have let them run for about 20
>>>>>>> minutes but the air doesn't want to come out. I can't see it when the
>>>>>>> water is flowing, but when I turn the water off I get the hammer noise
>>>>>>> and then the air appears and it looks like it comes out of the valve
into
>>>>>>> the pex.
>>>>>>> Will this air come out of the water line with use? Or is there something
>>>>>>> I should do? I would like to make sure that my pipes wont be hammering
>>>>>>> once I have my drywall installed.
>>>>>>> Thx
>>>>>> They make PEX in clear Material that you can see through? I have not seen
>>>>>> that before. As for the water hammer , just install air containing
>>>>>> Hammer chambers above each faucet, valve or whatever. The compression of
>>>>>> the air in those chambers will remove the hammer. Or you can purchase
>>>>>> units that do the same thing only with a bladder etc. The PEX we use for
>>>>>> hydronic heat must be a bit different in material then yours. Ours comes
>>>>>> in Red or blue colors and is rated for potable water.
>>>>> The Colored Pex here is heatpex (red) and you can use it for potable water
>>>>> but it is twice as expensive as the regular stuff. Our domestic water
pex
>>>>> comes in white and clear.
>>>>> I just tested my pressure and it is at 85psi. Could that be causing the
>>>>> hammering?
>>>> Pressure popoff valves are set at 50 to 65 lbs. You can still install
>>>> air compression chambers that should alleviate that.
>>> I hope you're not suggesting that water heater T&P valves have a 50 to
>>> 65 lb set.
>> Home boiler valves are set at 30, mikey... Please don't cry. Most new
>> water heaters have an expansion tank and a erwliwf valve, mikey as does
>> the boiler. You are making Stormy look brilliant by your antics. ;-)
>> I suppose you are also an expert in nuclear physics too. You Union guys
>> are hilarious.
>
> I didn't think you had a clue. Now I'm sure.

Keep it up Mikey. This is hilarious. ;-D

>

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