Bosworth Guzzler Manual Bilge Pumps 400 and 500

Priced: $67.99 Rated:   - 4 stars out of 5 by 3 reviews.
WestMarine.com $67.99
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Regularly: $87.99
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Bosworth Guzzler Manual Bilge Pumps 400 and 500 Reviews:

Positive Reviews:

Unintended Use works!

We are under regulations to abandon Environmental wells with pressure grouting. These pumps marketed as grout pumps are 10X as much money. This pump works fine and meets requirements.
Ka-ching!
Driller Ken at WestMarine.com on 04/04/2013

Product works very well

Light to handle & very versatile
Helpful at WestMarine.com on 06/06/2011

Neutral Reviews:

OK pump for emptying holding tanks

I've been using a Guzzler 500 for 10 years now for emptying my holding tank. It works well, and lasts about 5 years between rebuilds with pumping about 2 gallons per day.

Occasionally the flap valves seal poorly (likely due to solids) and it needs help to prime. The flap valves tend to fail at the hinge straps. I'd like to find the duckbill valves for this one.

The diaphragm is very durable and stands up to vigorous use. The last failure was a pinhole leak.

Silicon sealer in the center of the pump diaphragm and on the valves helps prevent seepage.

All the plastic parts are extremely durable, with no failures in 10 years.

The aluminum handle does get pitting from salt water corrosion. If it could be made of Delrin like the rest of the pump, it would be better.

Overall, this is a good pump for the price and I will continue using it.
Bob at WestMarine.com on 07/07/2013