Hi, I note that the Grundfos Alpha 2 requires a special plug to connect the electric wiring. Are those plugs reusable if rewiring is needed? It's an expensive plug, costing as much as a used Alpha pump. Suppliers of refurbished pumps don't supply a plug. Fine if it is a Grundfos like for like replacement, but if the pump is an upgrade you need a plug. It makes the economics of fitting a Grundfos pump far less attractive. Anyone know if these same plugs are used on other model pumps, or know of a reasonably priced source please? This form of connector really should be standardised.