MARINE
Installation Guidelines
This brief installation guide for SHURflo pump systems will answer the most often encountered questions about
basic marine plumbing systems. Additional more detailed information is available through technical data sheets
from SHURflo, as well as the installation instruction sheets provided with each product.
For more information, contact your SHURflo representative or SHURflo customer service toll free at:
MARINE
West of the Rockies:
(800) 854-3218
East of the Rockies:
(800) 762-8094
General Notes
††
• All SHURflo marine water pumps are ignition protected.
• In order to minimize heat rise, continuously operating
pumps other than bilge pumps should be mounted in
well ventilated spaces.
MARINE
• SHURflo diaphragm pumps will operate in any position;
however, the recommended position is motor up/pump
head down to prevent any possible water damage to
the motor in the event of a leak during setup or operation.
Mount on a solid surface to reduce noise and vibration.
MARINE
• All SHURflo pumps are engineered with rubber
mounting feet to minimize noise and vibration and will
function properly only if proper fasteners are used to
snug down (not flatten) the feet. Flexible mounting, as
well as flexible inlet and outlet plumbing (such as
reinforced hose), is critical to low pump noise level and
pump longevity.
• SHURflo recommends that all pumps be fused
individually, in addition to any other circuit protection
used such as circuit breakers.
• SHURflo offers a variety of barbed and threaded
fittings in standard hex or wing nut style, straights
and elbows from sizes 3/8” to 3/4.
”
• For all pumps except bilge pumps, the minimum
required tubing is 3/8” [10mm] I.D., however use
3/4” [19mm] I.D. to insure maximum flow.
• All SHURflo 2088 & 2093 threaded pump ports
are internally tapered, to be thoroughly handtightened only with SHURflo swivel fittings.
They eliminate expensive brass or stainless fittings
which require more complex plumbing.
• Waterguard™
filters are great for RV, Marine and
Home applications. The
filter may be installed in any
convenient location. Be sure to keep the
filter away from
any heat source. All
filters should be replaced seasonally
(6-12 months) or when taste and odor problems return.
MARINE
• A safety sea-cock (thru-hull valve) is required for
any installation using a thru-hull water source.
Wire Size Requirements [Based on 10 Amps; 10% voltage drop]
Battery-to-pump distance
Wire
0-10 feet
• The self-priming feature of SHURflo diaphragm
pumps allows them to be mounted any distance up
to 30 feet [9.2m] horizontal from on-board water
supplies, insuring easy access to plumbing
connections and strainers, maximizing reduction of
noise or vibration and minimizing exposure to
splashed water.
MARINE
14 GA
30-40 feet
12 GA
40-50 feet
MARINE
16 GA
10-30 feet
• In accordance with American Boat and Yacht
Council (ABYC) guidelines, the recommended
placement for all diaphragm pumps plumbed to
a thru-hull fitting is above the waterline.
10 GA
Plumbing Guidelines [For long life and low noise]
SHURflo Fittings
Feet
Pump/Hose
Hand tighten only
Snug, don’t flatten; solid surface
Flexible hose on inlet and outlet side of pump.
1/2” minimum on mains, 3/8” minimum on branch
Water Purifier
Noise Reduction
Run separate line from mains. 1/4” minimum recommended
Use flexible hose. Check for air in system, including all drain lines
and hot water heater lines
†
(1/2”-14 National American Straight Pipe Thread)
††
(Except 3000-300; 3000-301 & 3000-400)
