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Old 01-09-2015, 09:50 AM
 
Location: Long Island
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A friend discovered water running apparently in one of her toilets and she can't turn it off. Causing leak from pipe in basement. While trying to get a plumber to come look and fix whatever is wrong she turned of water main.
House is heated with gas hot water. How long can she keep water off safely since it's below freezing outside?

Any input appreciated. Thanks.
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Old 01-09-2015, 09:58 AM
 
Location: Mount Laurel
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Hot air water heater is a closed system. Water main can be off and heater will continue to function.
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Old 01-09-2015, 10:05 AM
 
Location: The Triad
34,088 posts, read 82,953,336 times
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Quote:
Originally Posted by Elke Mariotti View Post
A friend discovered water running apparently in one of her toilets and she can't turn it off.
While trying to get a plumber to come look and fix whatever is wrong she turned of water main.

House is heated with gas hot water.
How long can she keep water off safely since it's below freezing outside?
Ideally... the answer is indefinitely. But few of us live in Idealville.

Is the plumber coming today?
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Old 01-09-2015, 10:10 AM
 
Location: Long Island
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Quote:
Originally Posted by MrRational View Post
Ideally... the answer is indefinitely. But few of us live in Idealville.

Is the plumber coming today?
Seems the plumbers are all very busy. Doesn't look like it's happening today.
She's worried about the heating system. Temps going down in the teens tonight and it's a hot water system.
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Old 01-09-2015, 10:19 AM
 
Location: Central Atlantic Region, though consults worldwide
266 posts, read 449,848 times
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Quote:
Originally Posted by Elke Mariotti View Post
A friend discovered water running apparently in one of her toilets and she can't turn it off. Causing leak from pipe in basement. While trying to get a plumber to come look and fix whatever is wrong she turned of water main.
House is heated with gas hot water. How long can she keep water off safely since it's below freezing outside?

Any input appreciated. Thanks.
If hot water (below 212 steam) you will be fine that the mater mian is off for a rather long time. That is too say: So long as the heating system boiler is NOT single pipe steam. Such systems have auto fill and require frequent filling. You can identify single pipe steam systems with vents on radiators and a single lower pipe on the opposite end of the radiator. Be aware however, that some two pipe systems can have radiator vents installed in rooms that have problems heating some time in past.
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Old 01-09-2015, 10:33 AM
 
Location: Long Island
9,933 posts, read 23,150,229 times
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Quote:
Originally Posted by InterestedOne View Post
If hot water (below 212 steam) you will be fine that the mater mian is off for a rather long time. That is too say: So long as the heating system boiler is NOT single pipe steam. Such systems have auto fill and require frequent filling. You can identify single pipe steam systems with vents on radiators and a single lower pipe on the opposite end of the radiator. Be aware however, that some two pipe systems can have radiator vents installed in rooms that have problems heating some time in past.
I remember seeing the radiators. They're the old cast iron ones about 2.5 ft high or so and width various by room. She also has a separate water heater.

If it is single pipe system how long could the water main stay off without damage to the heating system?
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Old 01-09-2015, 10:39 AM
 
Location: Mount Laurel
4,187 posts, read 11,928,108 times
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Quote:
Originally Posted by Elke Mariotti View Post
I remember seeing the radiators. They're the old cast iron ones about 2.5 ft high or so and width various by room. She also has a separate water heater.

If it is single pipe system how long could the water main stay off without damage to the heating system?
If it's running cast iron radiators with boiler, it's a closed system. The house can still be heated provided the heating system is functioning.
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Old 01-09-2015, 10:39 AM
 
538 posts, read 538,588 times
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Quote:
Originally Posted by Elke Mariotti View Post
A friend discovered water running apparently in one of her toilets and she can't turn it off. Causing leak from pipe in basement. While trying to get a plumber to come look and fix whatever is wrong she turned of water main.
House is heated with gas hot water. How long can she keep water off safely since it's below freezing outside?

Any input appreciated. Thanks.
Has she checked to see if there is another valve somewhere between the main and the toilet in question? If that's the case, she can close off that valve without having to shut off the main. Of course, that valve may control water flow to other parts of the house. Just a thought.
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Old 01-09-2015, 10:44 AM
 
Location: Long Island
9,933 posts, read 23,150,229 times
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Quote:
Originally Posted by Cuzzant View Post
Has she checked to see if there is another valve somewhere between the main and the toilet in question? If that's the case, she can close off that valve without having to shut off the main. Of course, that valve may control water flow to other parts of the house. Just a thought.
Thanks. I'll ask her.
She's a senior and not very handy The house is old, don't know how easy it'll be for her to shut off valve if she finds it
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Old 01-09-2015, 10:45 AM
 
Location: Long Island
9,933 posts, read 23,150,229 times
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Quote:
Originally Posted by sj08054 View Post
If it's running cast iron radiators with boiler, it's a closed system. The house can still be heated provided the heating system is functioning.

Thanks for your input.
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