# Hot Water Tank Supply Line

**URL:** <https://forum.nachi.org/t/hot-water-tank-supply-line/106869>\
**Category:** Misc. Discussion\
**Created:** [June 5, 2016, 12:36am UTC](https://forum.nachi.org/t/hot-water-tank-supply-line/106869 "2016-06-05T00:36:52Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![smilek](https://sea2.discourse-cdn.com/internachi/user_avatar/forum.nachi.org/smilek/32/179117_2.png) [@smilek](https://forum.nachi.org/u/smilek)\
**Post date:** [June 5, 2016, 12:36am UTC](https://forum.nachi.org/t/hot-water-tank-supply-line/106869/1 "2016-06-05T00:36:52Z")

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Lets try this again.

While doing an inspection on an older home rehabbed by investor I noticed low water pressure on hot side at all faucets. When looking at HWT the dia of the hot supply was too small. A plumber went to home and confirmed this. Not to mention other issues like the exposed romex.

 ![DSCN6606.JPG](https://global.discourse-cdn.com/internachi/original/3X/c/8/c879c8c8cb7d33fb727b3aaf7b3b66c65ee68f2e.jpeg)

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**Author:** ![rcooke](https://sea2.discourse-cdn.com/internachi/user_avatar/forum.nachi.org/rcooke/32/57038_2.png) [@rcooke](https://forum.nachi.org/u/rcooke)\
**Post date:** [June 5, 2016, 12:58am UTC](https://forum.nachi.org/t/hot-water-tank-supply-line/106869/2 "2016-06-05T00:58:44Z")

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> [@smilek](#):
>
> Lets try this again.
> 
> While doing an inspection on an older home rehabbed by investor I noticed low water flow on hot side at all faucets. When looking at HWT the dia of the hot supply was too small. A plumber went to home and confirmed this. Not to mention other issues like the exposed romex.

The pressure would measure the same the flow would be restricted with a smaller pipe . This is a common mistake made all of us some times .

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**Author:** ![smilek](https://sea2.discourse-cdn.com/internachi/user_avatar/forum.nachi.org/smilek/32/179117_2.png) [@smilek](https://forum.nachi.org/u/smilek)\
**Post date:** [June 6, 2016, 11:57am UTC](https://forum.nachi.org/t/hot-water-tank-supply-line/106869/3 "2016-06-06T11:57:42Z")

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Yes…flow. Your right! Wrong description on my part.

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**Author:** ![rlewis5](https://sea2.discourse-cdn.com/internachi/user_avatar/forum.nachi.org/rlewis5/32/337040_2.png) [@rlewis5](https://forum.nachi.org/u/rlewis5)\
**Post date:** [June 6, 2016, 11:59am UTC](https://forum.nachi.org/t/hot-water-tank-supply-line/106869/4 "2016-06-06T11:59:11Z")

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Where is the PR valve?

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**Author:** ![rlewis5](https://sea2.discourse-cdn.com/internachi/user_avatar/forum.nachi.org/rlewis5/32/337040_2.png) [@rlewis5](https://forum.nachi.org/u/rlewis5)\
**Post date:** [June 6, 2016, 12:00pm UTC](https://forum.nachi.org/t/hot-water-tank-supply-line/106869/5 "2016-06-06T12:00:09Z")

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It that pvc and not cpvc on the hot line?