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Old 12-14-2010, 09:29 PM
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sphelps sphelps is offline
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The HGB isn't ideal for most applications. Good for external overflows with height limitations but the stockman is easier and more reliable. The HGB is just a reverse stockman, you have to tune it by sliding the coupling and bushing assembly up to partially cover the side holes to closely match the flow rate and then for further tuning you need to insert a 1/4" tube into the pipe from the cap to exhaust the air from a precise location. More trouble than they are worth and from all the ones I've seen people use they end up reversing the coupling creating a plain old stockman.
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Old 12-14-2010, 10:25 PM
Magma Magma is offline
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i just built a very crude model, threw it together and...it sounds so much softer now. I followed this diagram
http://i265.photobucket.com/albums/i...9/stockman.jpg

did the same idea but I drilled 4 holes with a 13/32 bit, and 8 holes with a 5/32 bit, and in the top cap I drilled a 1/8 hole works good and the pump and drain seem to be working well together I will be watching both closely for the next hour or so and see if the pump is going faster than the drain but right now seems good.
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