Grundfos “New Model” UPS3 15-50/65 Pump - Replaces UPS2 15-50/60

This pump is a replacement for my central heating system, the old pump failed due to the water level dropping (a failed cistern ball valve) which resulted in the pump running dry. That destroyed its bearings! This new pump is a little taller than the old one and because it was positioned beneath boards in the loft meant some more headroom was required. Not a big issue - and not the fault of the pump. This pump runs so quiet I couldn't hear it! I had to put my hand on it to feel the faint vibration to be sure it was running. Installation was very simple - about the same as fitting a domestic plug. Hope it lasts as long as my old pump, I have no reason to suspect otherwise as it appears to be well made.

Muy bien, cumple la función perfectamente

Quality looking pump with seals and power adaptor from the box. Very efficient and quiet, great value.

Arrived very promptly and before the estimated delivery date. It slotted in where the old model was removed from. Its very quiet although it did have some noise after a few days which was worrying but may have been air in the system - sounded very different to the other pump when some air reached the pump. All quiet and working fine for a few weeks now

When the pump arrived and I took it out of the box I looked at sceptically because it’s so much lighter than the pump it’s replacing. Easily transferred into the isolated system fitted exactly where the 26-year-old pump came from. The initial start-up was a bit noisy due to a bit of air in the system but the pump self vented after that it was whispered quiet fantastic