University test results – Chopper Pump Scores a Perfect Zero
May 13 2015 Read 1228 Times
A major university in Washington State that came close to sewage overflows is back on track thanks to the intervention of Mitchell, Lewis & Staver and a Landia (UK) chopper pump.
The near-miss overflows at the university were being caused by the continuous plugging of an existing sewage pump, also resulting in downtime and constant, costly maintenance.
Ty Collins from Mitchell, Lewis & Staver (MLS) commented: “More and more we see the problem of so-called ‘flushable’ products that clog up so-called ‘non-clog’ sewage pumps.
“Standard pumps can deal with standard sewage, but they are no match for the stringy, tear-resistant synthetic fibres of products such as wet wipes”.
Mitchell Lewis & Staver reviewed application data and changes in the waste stream with the campus facilities manager, opting for a submersible chopper pump that would be capable of actually cutting up the fibrous and stringy materials to the point that they would be pumpable.
Ty Collins added: “We specified a Landia chopper pump because of its proven, dual-action cutting mechanism and stationary hardened knife system. These knives chop and cut the materials prior to them entering the impeller. We’ve seen that other chopper pumps use the impeller itself as part of the cutting mechanism, but the Landia design allows for a far more efficient impeller system, whilst still passing whatever nominal solids remain”.
He concluded: “Since the installation of the Landia chopper pump, the results at the university speak for themselves: Zero clogging. Zero maintenance”.
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