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Old 06-02-2012, 06:46 PM   #16
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Pan under water heater is corroding?


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Originally Posted by Homerepairguy View Post
I just had a thought. Is there a capacitor in the electronics above the corroded part? If yes, it's probably leaking and the acid corroded the pan.

HRG
Um, Capacitors do not have acid in them. They contain oil.

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Old 06-02-2012, 06:49 PM   #17
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Pan under water heater is corroding?


Why do you even have a pan? Its on a concrete floor so not required in my area. Does it even have a drain?
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Old 06-02-2012, 08:05 PM   #18
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Pan under water heater is corroding?


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Why do you even have a pan? Its on a concrete floor so not required in my area. Does it even have a drain?
a pan is required. our floor doesn't have a drain, but the tank does. does that answer your question?
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Old 06-02-2012, 08:42 PM   #19
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Pan under water heater is corroding?


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a pan is required. our floor doesn't have a drain, but the tank does. does that answer your question?
Obviously the tank has a drain. I meant does the pan have a drain, not the floor. I didn't see one in the picture.
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Old 06-02-2012, 09:00 PM   #20
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Pan under water heater is corroding?


[quote=TheEplumber;934835]Obviously the tank has a drain. I meant does the pan have a drain, not the floor. I didn't see one in the picture.[/quote

yes. it's actually located 1/4 the way away from the corrosion hole. you can see it in pic #3 of my post
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Old 06-02-2012, 09:24 PM   #21
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Pan under water heater is corroding?


[QUOTE=neight;934857]
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Obviously the tank has a drain. I meant does the pan have a drain, not the floor. I didn't see one in the picture.[/quote

yes. it's actually located 1/4 the way away from the corrosion hole. you can see it in pic #3 of my post
Yep, I see a hole to receive the drain pan pipe but no pipe. If the pan fills with water to that hole it will spill onto the floor rendering your pan virtually useless. It is not protecting your floor as it is intended.
Here's my recommendations: Replace pan with a plastic one and pipe the drain to a floor drain or exterior.
Patch the existing holes per HRG's method and pipe the drain out.
Or (my choice) get rid of the pan.
As to whats causing the corrosion, I think it's the concrete
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Old 06-02-2012, 09:35 PM   #22
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Pan under water heater is corroding?


[quote=TheEplumber;934900]
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Originally Posted by neight View Post

Yep, I see a hole to receive the drain pan pipe but no pipe. If the pan fills with water to that hole it will spill onto the floor rendering your pan virtually useless. It is not protecting your floor as it is intended.
Here's my recommendations: Replace pan with a plastic one and pipe the drain to a floor drain or exterior.
Patch the existing holes per HRG's method and pipe the drain out.
Or (my choice) get rid of the pan.
As to whats causing the corrosion, I think it's the concrete
replacing the pan isn't an issue. it's what is causing the corrosion? why is concrete corroding the pan?
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Old 06-02-2012, 09:53 PM   #23
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Pan under water heater is corroding?


[QUOTE=neight;934917]
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replacing the pan isn't an issue. it's what is causing the corrosion? why is concrete corroding the pan?
Good question- to me it sounded better then drippy electronic acids
TBH, I don't have an answer to your corrosion culprit. Perhaps it was soldering flux left over when the heater was installed...
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Old 06-02-2012, 10:00 PM   #24
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Pan under water heater is corroding?


[quote=TheEplumber;934936]
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Good question- to me it sounded better then drippy electronic acids
TBH, I don't have an answer to your corrosion culprit. Perhaps it was soldering flux left over when the heater was installed...
I know the difference between solder, flux, and corrosion. if i didn't, i'd be a bad home inspector. this is something i haven't seen before, and it's happening in my home.
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Old 06-02-2012, 10:05 PM   #25
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Pan under water heater is corroding?


OK, my last guess then I'm watching the OT of the Stanley Cup-
Corrosive condensation from the bottom of the burner
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Old 06-02-2012, 10:23 PM   #26
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Pan under water heater is corroding?


what kind of pipe is coming off your t and p, is that going thru your pan. looks a little suspect the pic to me any way has like green corrosion.
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Old 06-02-2012, 10:24 PM   #27
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Pan under water heater is corroding?


This is that damnedest thread--the pan serves no useful purpose--it's old and rotten--so replace it with one that doesn't leak and be done with it--

what difference does it make why a thin galvanized pan corroded?
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Old 06-02-2012, 10:40 PM   #28
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Pan under water heater is corroding?


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This is that damnedest thread--the pan serves no useful purpose--it's old and rotten--so replace it with one that doesn't leak and be done with it--

what difference does it make why a thin galvanized pan corroded?
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Old 06-02-2012, 11:56 PM   #29
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Pan under water heater is corroding?


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Um, Capacitors do not have acid in them. They contain oil.
Did you notice that I mentioned "electrolytic" capacitor? Electrolytic capacitors do contain acid.

Here's a quote from wikipedia regarding electrolytic capacitors:
***** The electrolyte is usually boric acid or sodium borate in aqueous solution, together with various sugars or ethylene glycol which are added to retard evaporation. *****
Article at: http://en.wikipedia.org/wiki/Electrolytic_capacitor

Here's another website that lists 5 different types of acid used in electrolytic capacitors. Look at the chart at the bottom of the page:
http://www.elna-america.com/tech_al_principles.php

I assume what you are thinking of are oil impregnated paper capacitors that are used in older equipment and a/c oil impregnated capacitors.

HRG
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Old 06-03-2012, 01:15 AM   #30
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Pan under water heater is corroding?


were is a Capacitor on that w/h

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