Chemical drums found during a home inspectionChemicals That Should NOT Be Flushed into a Septic Tank

  • CHEMICALS to KEEP OUT OF SEPTICS - CONTENTS: List of other chemicals & substances that we have seen dumped into septic systems and in one case, into a well - don't do this!Do not use septic tanks, wells, even abandoned wells and septic tanks to dispose of chemicals
  • POST a QUESTION or READ FAQs about septic system chemicals and about using septic systems to dispose of certain chemicals and substances that may harm the drainfield or contaminate the environment

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What items and chemicals are NOT safe to flush down the toilet and into a private septic system besides normal household cleaners and household chemicals?

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Effects of Other Chemicals Flushed Into a Septic Systems

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Other chemicals or waste liquids & their impact on septic systems.

Interesting Questions & Answers about Spilling Chemicals & Treatments Down Toilets

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Question: Does sulfurated lime dip affect septic systems?

(Dec 3, 2015) Rob said:

Does sulfurated lime dip affect septic systems?

Reply: not if you dump 4 ounces of concentrate into the system

(mod) said: Rob (and for other readers)

Lime sulfur dip is a sulfurated lime solution used for animals including pets to kill mites and other parasites, and according to typical sulfurated lime dip vendors the dip also works against fungi and bacteria. It smells like rotten eggs - that's the sulfur content.

Sold for pet use the typical container volume is 16 oz. typically in a 97.8% solution (for veterinary use). You should consult a vet before using this treatment on your animals.

Because the solution is a type of biocide it's appropriate to ask if it's harmful to the necessary biota in a septic tank.

In typical preparation of the solution I describe above you dilute 4 ounces of the solution into one gallon of water and apply that solution topically to the animal.

Used in that volume and concentration and considering that a typical residential septic tank volume is 1000 gallons or more, you are diluting the dip from 97.8% lime-sulfur concentration twice: 4 0z in 128 oz (that dilutes to 2.31%) and then that diluted solution is further disposed-of into 128,000 ounces in the septic tank.

That dilutes to a 0.00002 % solution - before further wastewater enters the tank to dilute that solution further.

At that dilution I am doubtful you'd be able to detect the solution in the septic tank.

Question: effects of Miracle Method® bathtub refinisher on the septic system

2017/06/09 JWS said:

Hello - I'm considering hiring "Miracle Method" to refinish our tub. Do know if their chemicals would cause irreparable harm to our septic system? What's the best way to manage this process? Thank you.



You ask an interesting and clever question:

1. does tub cleaning to prep for miraclemethod tub refinishing contaminate the environemnt
and also you imply

2 is there a leach-out of chemicals from a tub re-finishing coating that will contaminate the environment as we then run bathwater through the tub and into a septic system?

Miraclemethod dot com, the company's site describes their process:

First, the tub is thoroughly cleaned using specially formulated two-step cleaners to remove soap scum, mineral deposits, and body oils. Next, all cracks and chips are repaired. Miracle Method's proprietary bonding agent, MM-4, is applied to ensure a solid bond between the old surface and the new finish. Finally, a trained professional uses a fine-finish spray process to apply a hi-tech, durable acrylic coating. - Miracle Method cited below.

Here is the MIRACLE METHOD TUB REFINISH PDS (product information sheet) for the resin used by Miracle Method to refinish your tub.

The product data sheet for the coating itself ( an acrylic ) notes that the resin is not particularly water-soluble, so I'm doubtful that there would be a measurable impact on the septic system from the finish tub coating once that coating has cured in place.

Noting that the "miracle" in any tub restoration is largely in the surface reparation we looked for a description of just what cleaners are used in tub preparation - without finding a clear answer, though the company does market separately cleaners and strippers for which they provide both product data sheets and MSDS.

Mira Clean #1 is a proprietary cleaner sold by Miracle Sealants. Here is a MIRACLEAN® PRODUCT DATA SHEET PDS - product data sheet for this cleaner

Here is the actual MIRACLEAN® / PrarieChlor® MSDS where we see a bleach product - a mix of sodium hypochlorite (main ingredient by percent or volume) , sodium hydroxide and sodium chloride (salt)

Mira Strip is a floor coating and wax stripper also produced by the company; I could not determine if this is also used in bath tub prep for the company's tub refinishing acrylic coating or not.

But here's that product MIRA-STRIP® PRODUCT DATA SHEET PDS - it contains a "petroleum distillate". (Naptha)

And here's an actual MIRA-STRI®P MSDS

OPINION: I am doubtful that trace levels of naphtha would harm a septic system thanks to the dilution in the larger volume of wastewater.

I am also doubtful that at normal usage levels a bleaching product used to clean a bathtub would harm a septic system.

Perhaps the company can provide more information on your question if you ask - do let me know.


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