Ulrik Sinding, owner of Djursland Kloakservice ApS (a sewage service company in Trustrup, Denmark) was practically born into the vacuum tanker business. Already in 1979, as a 15-year-old, he was hired by the company that his father, Orla Sinding, started in 1964. In 1989, at the age of 25, Ulrik Sinding took over the company, which has installed Samson pumps in most of its vacuum tanker trucks.
'I give Samson's liquid ring pumps my seal of approval. Here at the company, we've only had good and positive experiences with Samson pumps. They're sturdy, durable and highly reliable, as well as quiet and environmentally friendly. Those are a whole lot of advantages, so I can highly recommend Samson pumps to any of colleagues who ask me for advice,' Ulrik says.
Customers from a wide geographic area
Djursland Kloakservice carries out vacuum tanker jobs throughout Djursland, a region located in the north of Denmark, as well as in larger cities such as Aarhus, Randers and Silkeborg, which are, respectively, 32, 34 and 57 miles from the company headquarters in the village of Trustrup.
Djursland Kloakservice ApS serves private customers, companies and the public sector. The company has signed a contract with the municipalities of North and South Djursland involving the emptying of some 12,000 settling tanks (septic tanks) in the two municipalities.
Well suited for use in cities
'One of our 10 vacuum tanker trucks runs regularly for the Danish construction group Aarsleff's division that carries out cured-in-place pipe lining, a technique used to repair leaky sewers. Here, we flush and empty the sewers to remove sludge and waste before the cured-in-place lining is led through. This work is often done in cities, where the Samson pumps come into their own. Compared to rotary vane pumps, which make far too much noise while running, Samson's liquid ring pumps are practically noiseless. This is, of course, a big advantage for the workers operating the pumps, but also for the people who live and work in the surrounding area.
'The environment and working area also benefit when we use Samson pumps. Because the pumps are water-based, they only emit harmless steam, which evaporates quickly and doesn't bother the operator. Oil-based rotary vane pumps, on the other hand, emit oil fumes that cause problems for both the operator and the surrounding environment. If the vacuum tanker truck is parked next to a building, the oil fumes can stain the wall. If a rotary vane pump has a downward-facing exhaust, the oil fumes settle like a film that looks awful and can damage the asphalt. We can avoid this type of trouble and damage by using liquid ring pumps from Samson,' Ulrik explains.
The fact that Samson pumps are incredibly reliable is very important to Ulrik Sinding. Getting a vacuum tanker to run properly is a costly matter when such a vehicle can cost more than $400,000. For this reason, high reliability is golden.'We only very rarely have breakdowns with a Samson pump, and if something finally does happen, it usually only a minor issue that we can fix ourselves. For example, if we're cleaning up slurry or molasses, which creates a lot of foam, nothing goes wrong with a Samson liquid ring pump. It simply 'spits' the foam out as soon as it's created. When a rotary vane pump is exposed to foam, though, it immediately makes the dreaded 'ping' noise! And then the pump's working are over,' Ulrik explains.
Pump from 1996 still running
Djursland Kloakservice ApS purchased its first Samson pump in 1996, and it is still running today, just not in Djursland. The company has a policy of replacing its vacuum tanker trucks after around 12 years of ''service.' The vacuum tanker was thus sold to a colleague who still uses the vehicle and the incredibly durable Samson pump on a daily basis.
A few years ago, Ulrik began offering dry matter vacuuming, such as the removal of ash from combustion plants. As of yet, he is not sure if there will be enough work to purchase a dedicated – and expensive – dry matter vacuum. He therefore decided initially to fit a vacuum tanker truck with two Samson KS1025 pumps. This proved to be an effective solution, and a high number of orders quickly came in – so many, in fact, that after a couple of years there was a basis for investing in a costly mammoth vacuum that is designed on a completely different pumping principle than Samson's liquid ring pumps.
'Today we're doing a lot of work with dry matter suction, which has become an important business area for us. And it was the strong and effective pumps from Samson that made it possible for us to move into this area,' Ulrik notes.