Muck Munchers Reviews 2,828

TrustScore 5 out of 5

4.9

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Review summary

Based on reviews, created with AI

Reviewers overwhelmingly had a great experience with this company. Customers consistently praise the effectiveness of the products, noting significant improvements in their septic tank's performance. Many consumers have reported a reduced frequency of septic tank emptying, leading to substantial cost savings. People appreciate the convenience and ease of use of the products, along with the helpful monthly reminders to use them. Consumers also value the prompt delivery service and the clear, informative advice provided by the company. The products are considered reliable in maintaining healthy septic tanks, eliminating unpleasant odors, and preventing blockages. Some reviewers have been using the products for many years and express complete satisfaction with the results.

Based on these reviews

Rated 5 out of 5 stars
Verified

Been using them for 20+ year now and reduced tank emptying by 50%. Also use Digesta which helps keep dishwasher and washing machine from leaving odours in kitchen waste pipe and hair etc in shower w... See more

Rated 5 out of 5 stars

I have been using Muck Munchers for several years and the septic tank is in good condition in that I have mine emptied about every 4-5 years. On lifting the manhole there is a distinct lack of smell... See more

Rated 5 out of 5 stars
Verified

My experience with this company and it's product has been second to none. The ordering of products is easy and straightforward no fuss or hassle the notifications on delivery is accurate and have al... See more

Rated 5 out of 5 stars
Verified

I use this once a year in the toilet tank of my narrowboat to keep it working well and it really does the job nicely. Did have issues when we bought the boat with our pump out, but since I now treat t... See more

Rated 5 out of 5 stars
Verified

£5 off voucher for regular customers. Speedy dispatch of orders. Free advice on septic tanks via phone or email.

Rated 5 out of 5 stars
Verified

I have been using their products for a number of years now, the Septic Tank is in a healthy condition, no unpleasant smells,since using the Muck Munchers I do not need the tank emptied as often. Once... See more

Rated 5 out of 5 stars
Verified

Quick delivery from this company, plus helpful monthly reminders to use Muck Munchers. Have just purchased a second year's supply because when we checked our septic tank it had definitely worked so no... See more

Rated 5 out of 5 stars
Verified

I.have been purchasing for a few years now and best thing I ever did for septic tank and even the bathroom . It doesn't feel like we have a septic now it feels and smells like we are on the main sewer... See more

Rated 5 out of 5 stars
Verified

We started using Muck Munchers several years ago to keep our septic tank working well. Having moved to a house which is on main drainage we decided to continue using Muck Munchers as a way of keeping... See more

Rated 5 out of 5 stars
Verified

These little pouches from muck munchers seem to have kept our septic tank running as it should. I use the booster as an end of year treat! And 3 years into using them our tank hasn’t needed to be empt... See more

Rated 5 out of 5 stars
Verified

We have given five stars simply because the Muck Munchers system works really well. We have been using it for more than two years and our septic tank has remained clear and functional throughout this... See more

Rated 5 out of 5 stars
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We have been using Muck Munchers every month for at least 7 years. Our septic tank, which was installed 15 years ago, had never been emptied until we decided to have it checked last month. The compan... See more

Rated 5 out of 5 stars
Verified

My wife and I live on the edge of Exmoor, where most of our neighbours have four legs and woolly coats. We have no plumbed-in sanitation but rely instead on a septic tank. Muck Munchers allows us to d... See more

Rated 5 out of 5 stars
Verified

We have bought products from this company over many years. So far as we are aware the products do what they sat they do. We recently used an aireator liquid as we were suffering from odour. Guess w... See more

Rated 5 out of 5 stars
Verified

Muck Munchers products really WORK. There are never dodgy smells. My septic tank goes years before it needs emptying - saving me £Hundreds. (In fact, our local septic tank specialists recently... See more

Rated 5 out of 5 stars
Verified

I have been buying from Muck Munchers for over 4 years now and I am thoroughly delighted with their digester for my septic tank. Before this i had tried a different type and I ended up having to ha... See more

Rated 5 out of 5 stars
Verified

Product recommended, I have used it for 20 years approx and have never had any issues with our septic tank so I assume the product does what it says on the tin. The company always supply the product p... See more

Rated 4 out of 5 stars
Verified

Very prompt service & delivery and the monthly reminder email is very helpful. We are using it in a septic tank with a water treatment conversion. It certainly seems to be working as the unpleasant s... See more

Rated 5 out of 5 stars
Verified

Quick delivery, and instructions followed. Maybe too soon to say marvellous, but the pong from the S.TP. that lurked after emptying disappeared within 14 days. So, it is looking very positive 😀

Rated 5 out of 5 stars
Verified

Excellent product.... We've used Muck Munchers for 4 years now and it has definitely reduced how often we need the septic tank emptying. Monthly reminders to use them are always welcome and reorderin... See more

Rated 5 out of 5 stars
Verified

First time we have had a septic tank, was advised by last occupant to invest in Muck Munchers products. Placed an order and kit arrived promptly and with lots of advice, which we are grateful for. Use... See more

Rated 5 out of 5 stars
Verified

I've been using this product in my septic tank for years and have never had any problems. I get a reminder each month which is very useful.

Rated 5 out of 5 stars
Verified

Floor cleaner purchase. The product arrived with no issues. Purchased as one of our dogs has become sensitive to cleaning products. So far he seems to be tolerating this cleaner which is great and it... See more

Rated 5 out of 5 stars
Verified

Highly recommend all the muck munchers products I’ve tried. No more septic tank emptying. Great to have septic tank friendly drain cleaner, toilet cleaner and bleach.

Rated 5 out of 5 stars
Verified

Just had our annual maintenance visit for our 2 treatment plants. The sludge readings are down on last year. Muck munchers are doing a great job.

Rated 5 out of 5 stars
Verified

I buy regularly from Muck Munchers - easy to use website and a prompt and reliable delivery. I’m on a (very old) septic tank system and, since using Muck Munchers, I’ve had no problems!

Rated 5 out of 5 stars
Verified

we have used Muck Munchers for several years and they work! not just our opinion but that of the sewage removal operative who has emptied our septic tank for many years. I also like the monthly remind... See more

Rated 5 out of 5 stars
Verified

Muck Munchers have been an excellent company to do business with, especially the monthly reminder to add the product to our septic tank. The information given around keeping our system working efficie... See more

Rated 5 out of 5 stars
Verified

Items arrived promptly and in good condition. Lots of clear information and best of all a monthly reminder to use in septic tank. Excellent company. Thank you.

Rated 5 out of 5 stars
Verified

such a pleasure to have a non-smelly septic tank especially as it is close to the house. Easy to use, a boon to drain management. Thanks MMs

Rated 5 out of 5 stars
Verified

No fuss website. Products work really well. Have had no issues with our septic tank since using the sites products and the tank remains healthy. Delivery of products is quick and comes with no frills... See more

Rated 5 out of 5 stars

Say goodbye to that wafting pong from your septic tank. This product is truly amazing. In just a few weeks the awful odors began to diminish and now they are completely gone. I only wish I had known a... See more

Rated 5 out of 5 stars
Verified

You had what I wanted, it was a reasonable price with good delivery. What's not to like. Sorry, not going into the septic tank to see how well they are working!!

Rated 5 out of 5 stars
Verified

Always get reminders to use the product, which works brilliantly. It does exactly what it says it does and saves me money by not having to have my septic tank emptied so often. Thank you!

Rated 5 out of 5 stars
Verified

Been getting this product for many years and am pleased with the monthly reminders. What annoys me is receiving the continual flow of mail which is a waste of good finances

Rated 5 out of 5 stars
Verified

Too soon to review results as I had my tank emptied and have only used the starter pack and one monthly bag up to now. I do like the monthly reminder to treat my tank though.

Rated 5 out of 5 stars
Verified

Brilliant product. It keeps my septic tank working efficiently with no problems. I haven’t had it pumped out for over three years now and it’s still going strong; used to need it twice a year at best.... See more

Rated 5 out of 5 stars
Verified

Product always arrives on time and monthly reminders are friendly and useful.

Rated 5 out of 5 stars
Verified

I purchased this for a friend who is new to septic tanks and soak aways, he thinks this is an amazing product that has given exactly what was needed

Rated 5 out of 5 stars
Verified

Great service coupled with a product that does what is stated in the advertising.We have ,since using the product for many years not required our tank to be emptied.If I am honest I feel that this cou... See more

Rated 5 out of 5 stars
Verified

yOU DELIVER A QUALITY ITEM ON TIME AND THE RESULTS ARE JUST AS YOU CLAIM

Rated 5 out of 5 stars
Verified

Choosing Muck Munchers has saved me £100's on emptying the septic tank. Once a month just chuck one in the toilet, flush and forget.

Rated 5 out of 5 stars
Verified

MuckMunchers always deliver on time and send helpful reminders when we are due a new order. Thank you.

Rated 5 out of 5 stars
Verified

We used to have very frequent problems with septic tank - many fun evenings rodding out the drains, and having to get it emptied every year. For the past 7 or 8 years, we’ve been using MuckMunchers,... See more

Rated 5 out of 5 stars

The Muck Munchers have completely changed my life. Total peace of mind now that I’m using the sachets. They really DO work. No smells or clogging in the tank. Likewise - the toilet cleaner does an exc... See more

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Company details

  1. Septic System Service

About Muck Munchers

Written by the company

Muck Munchers XL is the UK's top-selling biological septic tank treatment, suitable for all types of tank (often referred to as cesspits), including modern package sewage treatment units.

The Muck Munchers range of septic tank treatment bacteria products eliminate problems and reduce unnecessary pump-out costs so you can enjoy the benefits of maintaining a healthy septic tank, free-flowing blockage-free soakaways and drains.

Muck Munchers XL is a flushable 12 x monthly probiotic septic tank treatment programme that reduces organic waste by up to 97%, saving you £100’s on unnecessary septic tank pump-outs.

To guarantee success each 12-month Muck Munchers XL programme comes with a Free Kick-Start Bio-Booster starter Pack.Together they’ll maintain your system in tip-top condition, digesting organic material, including fats, oils and grease, while counteracting detergent, bleach and other chemical contaminants.

By design, your septic tank naturally breaks down wastewater, cleaning chemicals and other pollutants.

When this natural digestion process is disrupted the natural enzyme-producing bacteria in your tank are weakened and occasionally destroyed resulting in a build-up of fats, oils, greases, excessive sludge, foul smells and blockages.

The monthly addition of Muck Munchers® septic tank treatment will maintain the ecosystem in your septic tank to promote the growth of the natural microorganisms (good bacteria) resulting in a reduction and the slowing down of build-ups, resulting in fewer pump-outs, odourless septic tanks and reducing the potential of soakaway problems.


Contact info

4.9

Excellent

TrustScore 5 out of 5

3K reviews

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Rated 5 out of 5 stars
Verified

Customer service

My experience with this company and it's product has been second to none.
The ordering of products is easy and straightforward no fuss or hassle the notifications on delivery is accurate and have always been delivered on or around the time ETA. I see no reason for this company to change anything in their service

October 3, 2025
Rated 5 out of 5 stars
Verified

Been using them for 20+ year now and…

Been using them for 20+ year now and reduced tank emptying by 50%.
Also use Digesta which helps keep dishwasher and washing machine from leaving odours in kitchen waste pipe and hair etc in shower waste as well as Eco Toilet
which avoids chlorine going into the tank

October 3, 2025

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