Comparing Sewage Treatment Systems
The TRUE cost of Sewage Treatment is composed of five system elements:
Questions to ask the sewage treatment manufacturers
Cost of Tank: This is an obvious outlay as it is the cost of the Sewage Treatment model you purchase.
Cost of Installation: The cost of installation varies enormously. It is usually dependant on how long the installation will take. For deep tanks requiring a lot of concrete, this raises installation costs as the concrete has to be paid for. There will also be the requirement for an electrical supply to be installed and as a result an electrician must be contracted and paid for. A FilterPod is one of the smallest sewage treatment works available, requires no electricity supply and can be installed in a day with an existing septic tank - this reduces installation costs considerably.
Cost of Emptying: This is one of the most expensive parts of Sewage Treatment. The emptying (desludge) by a tanker costs about £180 by a licensed contractor (don't let a non licensed person empty your plant - it is ILLEGAL and heavy fines can be imposed.) For 5 person system the usual desludge interval is between 6 months -12 months however for larger systems it can decrease to an interval of 30 days. The more frequently your plant needs to be emptied the more you will have to pay every year. A FilterPod settlement tank has a 1 to 2 year emptying interval
Cost of Electricity: All systems require electricity which has to be paid for and this usually costs between £150 to £300 a year for a 6 person system (larger systems are much more expensive, but Vortex Eco Electric systems are less). The FilterPod is a non-electric Sewage Treatment Process and costs nothing to run.
ASK for the Test REPORT
How much does the sewage system cost and what do you get for your money? - It’s advisable to get a written quote, particularly if it is an INSTALLED price, so that you are aware of what is included in the price you are given.
How many times each year does it need to be serviced? - The cost of servicing a sewage treatment equipment can add up if it requires more than one service each year.
What does servicing involve and could it mean extra costs to you? - Most sewage plants require professional servicing twice a year.
How much electricity will it use and how much will that cost each year? - Like new white-good appliances, sewage treatment systems should now be designed to use a lot less energy and therefore have less impact on the environment. Unfortunately, most are not, in fact some of the newest sewage treatment systems on the market use the most electricity! If the system relies on mechanical aerators and air blowers it could be very expensive to run.
Does it require de-sludging and how much will that cost? - most sewage treatment plants require a minimum annual de-sludge.
ASK: how often it requires it and how much it costs to remove this in your area.
What delivery costs are involved? The larger and heavier the tank, the more expensive it will be to transport.
Can you hear the sewage treatment system operating? Some use noisy blowers and pumps that hum up to 24 hours a day.
Does it ever smell? Some systems will smell, particularly those with unvented Primary Settlement Tanks. Some smell with heavy use, if you do a lot of washing or have extra visitors. Some systems have a spray irrigation aeration system inside that can also emit offensive odours.
Can the system handle peaks and troughs in water use? With some plants you need to space your water usage, which means spreading out washing and showers. Some sewage systems fail when you are absent and are not suitable for holiday homes.
Can it cope with normal household use? - Most plants cannot accept any tampons, panty liners, wet wipes, etc. This is impossible to police with visitors and for hotels, holiday lets, campsites, etc. Most are very sensitive to milk, beer, household chemicals, etc. and may fail if the wrong thing is accidentally put down the sink
Is it safe for the environment? - Most plants are energy-intensive with a large carbon footprint, using excessive amounts of fossil fuels in the form of electricity for operating and sludge digestion, diesel for tankers, service vans, parts delivery, etc.