Changes

Maintenance on any part of the pump cylinder requires that the riser main and the pump rod be removed from the ground.The pump rod is galvanized steel and sections are threaded together. The pump cylinder is threaded onto the last section of riser main and is removed in its entirety as the last component to come out of the ground. The pump cylinder can then be unscrewed from the riser main. The top and bottom caps can be unscrewed from the cylinder body to gain access to the foot valve, the piston valve, the piston seals and anything else inside the cylinder body.

* Do it yourself India Mark ll maintenance: [http://www.clean-water-for-laymen.com/support-files/idrcindiamarkii.pdf IDRC India Mark II Manual.] International Development Research Centre (IDRC).