Installation guide
40
WATER SOFTENERS
To reduce the quantity of laundry detergents you use you need to find out how hard your water is. You should contact EPS for
advise on this.
The hardness of water is determined by the amount of calcium and other minerals it contains. Hard water is rich in calcium which
reduces the effectiveness of soap and detergents. There is a scale of water hardness: 0 – 71.3ppm very soft, 71.3 – 142.5ppm soft,
142.5 – 213.8ppm medium hard, over 213.8ppm hard. In line with EC recommendations, all fabric washing products now carry
advice on how much to use according to these levels of water hardness. Once you have identified where your water fits on the
scale you can work out exactly how much detergent to use. If in doubt you could phone the manufacturer for advice - most offer a
customer-care phone service.
But to help you reduce the quantity of detergent still further - and save you money - you could use a separate water softener
supplied by EPS or one of our agents.
COMMERCIAL WATER SOFTENERS
Water softeners that involve a “salt” regeneration process can be very harmful to biological treatment systems. As the softener
regenerates a very concentrated salt solution is used. This will be toxic to the micro-organisms in your biological sewage treatment
plant. Please contact EPS Bison if in doubt.
WASTE DISPOSAL UNITS
These do not inhibit the micro-organisms, but, depending on use, they can present the treatment plant with considerable extra
load. Much better to compost your vegetables peelings etc.-its cheaper and more environmentally friendly. To avoid any issues EPS
do not recommend the use of waste disposal units.
HARMFUL SUBSTANCES
The following list consists of known process inhibitors, though not limited to. Under no circumstances should they enter the treat-
ment plant:
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cals such as weed killers or fertilisers; DIY products such as paints, white spirit, paint thinners and other solvents, glue, antifreeze,
engine oil dairy waste.