Jabsco - Amazon Universal Pump

For mounting on bulkhead, through bulkhead or on deck. Readily achievable 100 Litres/min (22 gallons/min) output. Flow direction can be changed 180º by interchanging inlet and outlet ports.
 
Quick release clamp ring gives fast access for blockage clearance. Complete with stainless steel handle, mounting clips and provision for safety lanyard. Excellent solids handling ability for use with holding tanks.