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Old 05-13-2018, 01:49 PM   #1
adam
 
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Rusted Garage Floor Drain Cover


Hi All,


Attached below is a photo of my rusted garage drain that should have been painted when it was installed. I'd like to replace it because I've tried a few methods to stop it from rusting, but it's slowly getting worse.

A little background that *might* help: my house was built in 1998.

My questions are:

1. What's the name of that drain part, is it a bell trap?


2. What's the anatomy of the drain. How many parts might it have? More specifically, how deep into the concrete does the square part of the drain penetrate? Is the square portion attached to the rest of it, or is it merely a thin cap?


3. Any general method or advice to replace it, or perhaps suggest a repair option? So far, I've used a rotating metal brush mounted on a drill to strip the rust and then painted over it, but the rust returns eventually.



Thanks,
Adam
Attached Thumbnails
Rusted Garage Floor Drain-garage-floor-drain.jpg  

Last edited by adamz; 05-13-2018 at 02:03 PM.
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Old 05-13-2018, 02:38 PM   #2
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Re: Rusted Garage Floor Drain


Do you know the metal the floor drain is made of? If its cast iron or steel, you could use a rust conversion primer, then apply an appropriate top coat.

I'd do everything in my power to keep the existing drain box.
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Old 05-13-2018, 02:47 PM   #3
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Re: Rusted Garage Floor Drain


Thanks 47_47.


I believe it's cast iron.
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Old 05-13-2018, 03:29 PM   #4
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Re: Rusted Garage Floor Drain


What is the drain pipe made of? Plastic, iron, orangeburg? It looks like the pipe is inside the drain box, and there is is going to be water trapped there. you might try a silicone sealer, but I doubt that is a long term solution. If the pipe is plastic, can you put a bell reducer on the pipe?
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Old 05-13-2018, 04:25 PM   #5
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Re: Rusted Garage Floor Drain


Hi fireguy,

The pipe is plastic with about 1/8 inch clearance between the top few inches of the pipe and the cast iron drain cover that surrounds it.


I'm not familiar with a bell reducer or what it's used for. If you can point me to an Internet resource (a web site or forum) or explain what that is, I can probably answer that question.


Thanks.
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Old 05-13-2018, 05:27 PM   #6
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Re: Rusted Garage Floor Drain


I would put that back together and leave it.
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Old 05-13-2018, 11:34 PM   #7
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Re: Rusted Garage Floor Drain


https://www.amazon.com/SCH-PVC-BELL-.../dp/B0160B8J1E

Here is a bell reducer. But, I cannot tell you how to get from the round bell reducer to the square hole in the floor.
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Old 05-14-2018, 06:41 PM   #8
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Re: Rusted Garage Floor Drain


Thanks fireguy.


I think I'll try the rust conversion primer suggested by 47_47 in the post above. The drain is still fully functional, it's mostly a cosmetic issue at this point and the converting primer might prevent it from deteriorating any further.

Last edited by adamz; 05-14-2018 at 06:43 PM.
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