i had the same pump as my spare
my pump on the trolley was playing up so i just changed it for my spare ( the pump in question ) i used it for over 9 months
as its a low output pump, i just let it pump at full blast, i found the flow just right for me
21 quid delivered, ideal for a spare pump on the van, lets face it, if your pump packs in, you lose alot more than 21 quid for the day ( or 2 ) work lost