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Another Hot water Heater thread
Posted on 9/16/26 at 9:03 am
Posted on 9/16/26 at 9:03 am
Anyone have any experience with the Rheem Marathon Plastic tank hot water heaters? i didnt know these existed until searching for a new water heater. they look to be about double the cost, but they also come with a lifetime warranty. i also have not seen many pro/con discussions. wondering if any baws here have experience with them.
i currently have an AO smith 40 gal that sprung a leak around the inlet nipple last year and i fixed that myself. now it seems the leak is coming from the bottom of the tank somewhere. i vacuumed the drain pan and can see water seeping back into the pan from below the tank. i didnt replace the anode when i replaced the inlet nipple/dip tube which is probably why its leaking now.
seems like a plastic tank would remove at least one fail point.
I'm on a well with a softener.
Home Depo Link to heater in question
i currently have an AO smith 40 gal that sprung a leak around the inlet nipple last year and i fixed that myself. now it seems the leak is coming from the bottom of the tank somewhere. i vacuumed the drain pan and can see water seeping back into the pan from below the tank. i didnt replace the anode when i replaced the inlet nipple/dip tube which is probably why its leaking now.
seems like a plastic tank would remove at least one fail point.
I'm on a well with a softener.
Home Depo Link to heater in question
Posted on 9/16/26 at 11:43 am to Pezzo
Old anode rods are undefeated in conference play.
Posted on 9/16/26 at 12:51 pm to ml
agree, that's why I'm contemplating making the move to the plastic tank. i've just learned that softened well water is even harder on anode rods than city water is. if i go back with a metal tank then id have to add routine inspection of the anode.
Posted on 9/17/26 at 8:10 am to Pezzo
quote:
Anyone have any experience with the Rheem Marathon Plastic tank hot water heaters?
I installed two 60-gallon 208V for a commercial client years ago and as far as I know they are still working. These were for a small restaurant and they were burning out conventional 50-gallon units, high usage combined with really bad downtown Shreveport water.
Posted on 9/17/26 at 8:28 am to Clames
I need to look into that for my restaurant. I might get 4 or 5 years out of one with this bayou water. Had the last two cut open and they were wrecked inside
Posted on 9/17/26 at 9:09 am to Clames
from what i see on the reviews on HD the main issue is the inlet nipple leaking from a mfg defect. I'm hoping they fixed that issue.
Posted on 9/17/26 at 9:27 am to Pezzo
Buy one from a supply house and not a big box store.
Posted on 9/17/26 at 9:45 am to LOL
I'll look into that
are supply houses supposed to have better quality for some reason?
are supply houses supposed to have better quality for some reason?
Posted on 9/17/26 at 10:02 am to Pezzo
Yes, and much better customer service if you ever need. Parts are more readily available as well. You may spend $75 more but it is worth it

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