You can rebuild the pump with orings from this company. https://www.theoringstore.com/store/
Don't be put off by the minimum quantities you have to buy. You may have to buy 25 but the total cost will come out to $4 or something. Your pump should have a parts list with the o ring numbers.
Don't be put off by the minimum quantities you have to buy. You may have to buy 25 but the total cost will come out to $4 or something. Your pump should have a parts list with the o ring numbers.