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Disposals compatible with septic systems?

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Disposals compatible with septic systems? nospambob 07-03-2006
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Posted by on July 3, 2006, 1:09 pm
We believe the seller of the house we have had a disposal but there is
none in the sink now. Are there negatives or pitfalls combining the
two? Our son and DIL have the combination and haven't reported
problems but I guess a "second opinion" could benefit us. Thoughts
welcomed.

Posted by jackson on July 3, 2006, 4:06 pm

> We believe the seller of the house we have had a disposal but there is
> none in the sink now. Are there negatives or pitfalls combining the
> two? Our son and DIL have the combination and haven't reported
> problems but I guess a "second opinion" could benefit us. Thoughts
> welcomed.

A garbage disposal on a septic system is not recommended - IMHO. The thing
that kills septic systems & leach fields is solids, why would you want to
add more to the system? I'd also stay away from bleach, any strong
chemicals, fats, grease, hair, etc. Pump and inspect the tank (and baffles)
at least every other year.

That's just my 2 cents though.....



Posted by on July 3, 2006, 4:18 pm

nospambob@vcoms.net wrote:
> We believe the seller of the house we have had a disposal but there is
> none in the sink now. Are there negatives or pitfalls combining the
> two? Our son and DIL have the combination and haven't reported
> problems but I guess a "second opinion" could benefit us. Thoughts
> welcomed.

Disposals are compatible with septic systems. Just be sure to have the
tank pumped out at the proper intervals for the size of tank and number
of persons using the system.

See the chart on this page to get a ballpark estimate for pump-out
frequency:

http://www.montana.edu/wwwpb/pubs/mt9403.html


Posted by on July 3, 2006, 4:21 pm

> http://www.montana.edu/wwwpb/pubs/mt9403.html

P.S. On that page:

Table 1 lists how often you need to pump out your tank on average,
given the size of the tank and the number of persons living in the
household. These figures were calculated assuming there was no garbage
disposal unit hooked up to the system. The use of a kitchen garbage
disposal will increase the amount of solids in the holding tank by as
much as 50 percent.


Posted by Bob on July 3, 2006, 4:49 pm

yellowbirddog@hotmail.com wrote:

> The use of a kitchen garbage disposal will increase the amount of solids
> in the holding tank by as much as 50 percent.

The last time I had my tank pumped, the service tech said the #1 solid
problem was sanitary napkins. Food from a disposal will dissolve over
time, but those things float forever.
Bob


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