Simon, yep they are expensive

, but they got it out to me the next day which was great. i wanted a price on some new solution hose as well. Wow really expensive. ended up buying 150ft of hose from joe bristor at wanders. a right result.
Doug, i checked and put new pipes and fittings on the plumbing but still had problems with the old pump. am thinking about taking it apart and replacing the bearings and head. maybe keep it in the van as backup.