Septic Tanks in Washington
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Septic Tanks in Washington, DC
The fundamental function of the septic tank is to remove solids from raw wastewater. This process is known as primary treatment.
At this stage 60%–80% of total suspended solids (TSS) are removed from the wastewater and almost 80% of the FOG is removed. Of the solids removed from the wastewater, some are digested and others are stored in the tank. Up to 50% of the solids retained in the tank decompose; the rest accumulate as sludge and scum and must be removed periodically.
We can take care of your septic tank from day one with installation, and keep it (and your commercial property) in great shape with routine septic tank pumping. We began in 1950, and we’re now in our 3rd generation as a family-owned business. We stake our business on our reputation. Call Magnolia Commercial Plumbing Heating Cooling today to request an estimate or schedule an appointment.

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We called Magnolia to help us with an emergency situation in our home.
Mario was incredibly professional and clean while working. He was kind and made sure we fully understood what was happening each step of the way. I would absolutely use this company again for future needs and highly recommend Mario!
Haley L
Magnolia was great. They were extremely professional and honest.
Came in and had the job done quickly – moved all my appliances for me, wore booties, and even put down drop cloths. I couldn’t have asked for anything more. I highly recommend them to anyone looking for an exceptional plumbing company. Thank you Magnolia!
Rebecca M
Magnolia plumbing was efficient and cost saving with replacing my water heater.
They made sure I checked the warranty of my tank so I did not unnecessarily purchase a new tank, and mine was still under warranty. I was very pleased and thankful for the fantastic work.
Kristen W
I needed to have several plumbing repairs handled
at my place of residence. So I contacted Magnolia Plumbing. They have always been professional and knowledgeable. Last week I have Duane Cunningham arrive and he was very polite and professional and very efficient. He explained all of what would be needed to perform the repairs and he performed each task timely and effectively. Magnolia Plumbing Heating and Cooling will always be my 1st choice.
Andre M
Magnolia is full service,
including air conditioning, heating, plumbing and subcontracting for flues and chimney lining. I had a very old gas water heater and they replaced it within 2 days from doing an audit and even when I requested a switch to electric from gas at the last minute it was no problem. Pasquale is a professional and took care of every aspect, replaced leaking pipes, brought my gas boiler flue up to code and installed a high grade water heater; their pricing is very competitive.
Barbara B
