Diamond DMS2 Domestic Sewage Treatment Plant WatlingHope |

Affordable small sewage systems for private individuals. WPL Diamond sewage treatment plants (STP) are suitable for single or multi property installations up to a PE (Population Equivalent) of 20.

There are four models in the range to cater for different Population Equivalents

DMS2 1-6 PE
DMS3 5-11 PE
DMS4 10-15 PE
DMS5 14-20 PE

Unlike some other treatment plant technologies, the Diamonds works effectively at maximum PE loadings, therefore, it is not necessary to oversize plants in order to consistently meet the Environment Agency’s Consent to Discharge Standards. To discuss sizing requirments please contact Watling Hope on 01789 740757.

WPL’s Diamond Sewage Treatment Plants – Summary of Advantages The Diamond STP has major advantages over competitive plants available for use in the domestic or small commercial sector marketplaces:

Low Tankering Costs - Long interval between plants de-sludging (emptying) once every 2-3 years, or longer. This is due to the Diamond’s unique process of treating both the liquid and solids.

Low Maintenance Costs - The Diamond has NO media, NO electrics and NO moving parts within the hostile environment of the treatment plant so has low on-going maintenance costs.

How the Diamond Works
The Diamond’s unique internal weir design ensures that solids do not escape with the final effluent into the soakaway or watercourse.

The Diamond’s process relies on gravity then aeration to circulate oxygen to assist the natural biodegrading of the solid matter and fluids. A kiosk housing the compressor with low power consumption (70 up to 270 watts, dependent upon model) is externally mounted to provide aeration to the plant.

The Diamond treats effluent to the 20 :30 mg/l BOD : Suspended Solids Royal Commission standard on a 95%ile basis.

As Diamonds do not have Primary Settlement Tanks (where raw sewage can turn septic after 90 days) they should not produce unpleasant odours (hydrogen sulphide) emanating chiefly from stored solids. Generally, plants do not require venting as the normal route is through the soil vent pipe (svp) on the building.

Salt-based water softeners should not be used with any sewage treatment plant unless the backwash of concentrated brine solution can be diverted to not discharge into the plant. This backwash gives the live bacteria a toxic shock.

Waste disposal units can be used but they will increase the loading on the plant by 30% and may marginally shorten the period between de-sludges.

Diamond Sewage Plant Maintenance
The Diamond only needs minimal annual maintenance tasks. These tasks are quick, easy and are not messy, unlike some other plants. Clients may do their own servicing or alternatively, we can provide specialist maintenance (and keep records as required by Environment Agency’s Consent to Discharge) and supervised tankering.

To discuss the benefits of a maintenance contract for your Diamond Sewage Treatment Plant please contact Dominic Taylor on 01789 741827.