Adding a wash down pump to your boat brings a lot of versatility and options you have never had before: such as: cleaning out live wells, rinsing off the side of your boat from fish droppings or blood, or for use when cleaning up after on board fish filleting. There are several manufacturers who make a wash down kit that includes a pump, connectors and a hose - which is typically coiled for ease of use and storage.
To install a wash down kit on your boat you will need to answer several questions:
Marine and RV dealers suggest such a tank in order to decrease pump running time, reduce motor heat due to excess cycling, and create a more consistent water flow for wash down and rinsing. You will need to assess space for such a tank which is often placed in a dry storage area with the ability to run water lines to and from pump to the accumulator tank to the output hose. Many boats have a sub floor where gas tanks are located and side walls where all sorts of wiring and tubing can be placed. Estimate the length of water hose you will need and pick this up at local hardware stores. Of course you must also be able to connect the pump and switch to an accessory battery.
This Johnson Pump and wash down kit shown below contains all you need to get started. The pump delivers 5 gallons per minute at a maximum pressure of 70 PSI. Packaged with a 25 foot coiled hose, a valved bulk head fitting and inlet strainer to protect the pump. Add an additional accumulator tank as shown above to complete you unit.