Does it pump at a constant flow rate or a squirt-squirt-squirt like a macerator pump?

This is a Diaphragm pump so it will pulsate.

What size and type of hoses are compatible with this pump? How does one attach? Hose clamps? Sealants?

Our Gulper 220 offers 3/4" hose connection. You may use a hose clamp to secure the hose.

Can you use this for a fresh water pump also?

This pump is designed for grey water evacuation. I would recommend our Whale Watermaster pump or Whale Universal pump for fresh water hold tank.

Will this pump manage waste water from the galley sink?

Yes. I would highly recommend to have a sink strainer so that solids are not running down the drain to the pump. Otherwise, a great super reliable pump!

ASIN	B002FPGN7C
Best Sellers Rank	#199,067 in Sports, Fitness & Outdoors ( See Top 100 in Sports, Fitness & Outdoors ) #37 in Boat Plumbing Bilge Pumps
Brand	Whale
Brand Name	Whale
Colour	Grey
Customer Reviews	4.5 out of 5 stars 50 Reviews
Flow Rate	3.5 Gallons Per Minute
Global Trade Identification Number	00766478155405
Item Weight	3.86 Pounds
Manufacturer	WHALE MARINE
Material	Stainless Steel
Material Type	Stainless Steel
Model Number	BP1554
Power Source	Electric
Product Style	Centrifugal
Style	Centrifugal
UPC	766478155405
Voltage	24 Volts

Whale Gulper 220 Grey Waste Pump 24V

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