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    Septic Tanks: Your questions answered

    22nd April 2022

    Septic Tanks are prone to a gradual build-up of deposits and a slowing down of the natural digesting action of the micro-organisms which normally break them down. Leading to malfunctioning of the septic tank causing, blockages, bad smells, overflowing and consequent boggy conditions in the overflow area around the septic tank.

     Can a septic tank cause the toilet not to flush? 

    A common sign of septic tank problems is a toilet that's slow to flush, overflowing or just won't flush at all, and a plunger can't fix the issue. The tank may be full or there could be a blockage in the pipes, so make sure you get this looked at sooner rather than later to avoid major issues and more costs.

    How often should I empty my septic tank? 

    Every septic tank varies and depends on the size and condition of the tank, some septic tanks require emptying every three to five years, some once every 12 months and some more or less frequently. It all depends on the size, the use and the condition of your tank. However, don't make the mistake of waiting until yours is full before doing so because the more sludge there is in your tank, the less efficiently it will work and the more chance there is of it becoming blocked.

    Should my septic tank smell? 

    A correctly maintained septic tank should never smell! If you notice a horrible drain smell in your house or out near the drainage field, this is a sign that there is a problem with the system, and you should have it checked out by a professional.

    Are you following the new guidelines?

    In 2020, The General Binding Rules changed to state that discharges from septic tanks directly to watercourses are prohibited. Therefore, you may need to update and upgrade the treatment system to comply with current rules.

    Cotswold Drainage offers a variety of services with Septic Tank problems, just some of our services include:

    • Installation
    • Removal
    • Conversion of a tank to a Treatment Plant
    • Reports and Investigations
    • Sorting out soakaway problems

    At Cotswold Drainage we offer finance options to help you with a new installation along with a 25-year guarantee and an annual service and maintenance programme to help you keep your tank in tip-top condition. So, if you need help with your septic tank call us on 01386 882324.


    Get in touch

    Contact our friendly and professional team via form, phone or email for any drainage issues you may have.

    From blocked drains to septic tank repairs and replacements, we're here to help. We have over 25 years of experience and offer 24/7 emergency callouts.


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    I found this company vie the internet, so had no prior knowledge or reference. The project manager visited on time and I found his ideas and plans very credible. We did a deal and all worked out exactly as the company described, including cost and timing. I have no complaints, and am very satisfied and I would highly recommend this company. for such work.
    - Richard Booth
    Loo's were backing up so contacted Cotswold Drainage at 12 noon on a Saturday via WhatsApp which was listed on their website. They responded within 60 seconds and Adrian was at our house by 3pm, quickly assessed our underground drains layout and unblocked it in less than 15 minutes. To make sure everything was 100%, he got us to flush all loos to ensure water was flowing correctly and finished off with a camera up the drains to check everything was totally clear. A very efficient and thorough service and they even guarantee the work for six months. Highly recommended. Thank you.
    - PhilipC
    Cotswold Drainage are absolutely fantastic! Always prompt, always reliable, and they sort out every issue with impressive speed. Our workplace drains cause more trouble than we’d like, but these guys come to the rescue every single time. Truly outstanding service!”
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    They provided me with a prompt and efficient service when a drain at the back of my house was blocked. The two people I spoke with on the phone and in person were reassuring and helpful. Would recommend.
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