Sewage Treatment Plants vs Septic Tanks
One of the most common questions we are asked here at CM is, "What's the difference?" between a septic tank and a sewage treatment plant. A septic tank is effectively a holding tank for solids, so depending on usage, it will need emptying frequently and will require a soakaway designing and installing in order to treat the foul water before it enters the ground. With a sewage treatment plant however, the treatment takes place through a biological process within the unit, so can discharge directly into a ditch or watercourse safely. Like a septic tank, a treatment plant can also discharge to a drainage field, but this will be smaller than the one required for a septic tank because it is only draining as no treatment is required.
All of our CM engineers are British Waters accredited and all CM staff are fully equipped to answer questions about the new 2018/19 regulations regarding updating septic tank systems to sewage treatment plants, so please do give us a call if you need any further information.