Specifications include, but are not limited to: PRIMARY WORK: A. Remove · The grout below the removed existing elbow should be chiseled away and the anchor bolts removed. The Contractor shall provide a single or double bypass pump capable of 500 gpm at no less then 145ft of total dynamic head. A backup pump is not needed as the wetwell can be used again by pulling the plugs and using the large pumps if more time is needed for pumping down and repairing. Work shall be completed during daylight hours by shutting the wetwell slide gate and bypass pumping out of the old wetwell. · Remove the existing 8" Knife Valve as shown in the plans. B. Repair · The anchor bolts may have been grouted in place due to concrete damaged. Contractor shall inspect base and recreate a smooth anchor base to reinstall anchors if necessary. The bolts shall be reinstalled that they are removable by District staff in the future, not permanently grouted in. If replaced, new epoxy anchors shall be set by predrilling holes and inserting stainless 416 threaded rods. C. Replace · Install the new base. The base will be mated up the existing discharge piping. The new pump shall be set on the guide rails and tested. · Install new 8" Knife Valve as shown in the plans.
