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Old 05-09-2021, 08:20 AM   #1
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Whale Grey IC experiences and advice

Planning a shower drain box replacement, and I'm planning on using Whale Marine's Grey IC system. If you haven't seen these, they seem to be a slick replacement option for the smelly, always full of something shower boxes: https://www.whalepumps.com/marine/pr...ndlyID=Grey-IC

I'm not affiliated with them or any retailer.

The basic idea here is the shower box is gone, you use their mainfold (or they have shower drain options too) to connect the sources and it senses the water, and cycles the linked pump. Their site above has great videos that shows it all very clearly. Supposed to be more trouble-free. Personally if I never have to open up a shower sump box again, I'll be really happy!

In my case the Grey IC manifold is ALMOST perfect. It will take my shower drain and sink drain no issues. But, I have a condensate drain from the forward AC unit (well I think that's what it is):

What should I do with this condensate drain? I do have a bilge pump in the same area that needs replacement:

I'm going to be boating on Lake Superior, and while I'm sure there will be some summer days the AC will be used heavily, would it be a major issue to just have this drain into the bilge? I don't really like that idea...but any other ideas?

Also, any experiences with the Whale products? From what I can recall here on TF, most have been super happy with the Whale system.

Thanks!
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Old 05-09-2021, 08:54 AM   #2
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Sounds and looks to be a good idea. I rarely use my shower so I keep the box fresh with some hydrogen peroxide occasionally but still, looking inside it is GROSS.

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Old 05-09-2021, 10:25 AM   #3
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I installed the Whale IC. Replaced the messy sump. It works a charm.
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Old 05-09-2021, 12:24 PM   #4
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I replaced my old shower sump with the Whale tank and Gulper pump system. https://www.whalepumps.com/marine/pr...k-Waste-System
I run two shower drains and two AC condensate drains to it. It works great!
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Old 05-09-2021, 01:12 PM   #5
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Unless I misunderstand the plumbing, why can’t you just leave the T in the line so all 3 drain into the manifold? My sink drains to a thru hull, so I only plumbed the shower and AC condensate to the manifold, but I don’t see why you couldn’t just connect what you have now, as long as all the lines are above the manifold.
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Old 05-09-2021, 02:53 PM   #6
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Quote:
Originally Posted by Woodstock View Post
I replaced my old shower sump with the Whale tank and Gulper pump system. https://www.whalepumps.com/marine/pr...k-Waste-System

I run two shower drains and two AC condensate drains to it. It works great!
Interesting. I didn’t look at that on their site, it appeared to be a bigger tank. Is there a clean out on it? Is it a box like the old one or something else?
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Old 05-09-2021, 02:55 PM   #7
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Quote:
Originally Posted by wpc691 View Post
Unless I misunderstand the plumbing, why can’t you just leave the T in the line so all 3 drain into the manifold? My sink drains to a thru hull, so I only plumbed the shower and AC condensate to the manifold, but I don’t see why you couldn’t just connect what you have now, as long as all the lines are above the manifold.

You are correct, I could leave the T. But the hoses are corrugated, I was planning on replacing them and my thought was less junctions, less problems. But I may end up
Leaving it. Thanks for the thoughts!
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Old 05-09-2021, 07:06 PM   #8
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Interesting. I didn’t look at that on their site, it appeared to be a bigger tank. Is there a clean out on it? Is it a box like the old one or something else?
The tank is just slightly larger than the standard Rule shower sump box. It is made from HDPE, not hard plastic and has an inspection port top that unscrews from the tank for inspection and cleaning. The non-contact level sensor is built into that screw-in top.
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Old 05-09-2021, 08:52 PM   #9
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I have the whale gulper set up with their box. Works great, no residue or odor.
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Old 05-09-2021, 10:51 PM   #10
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My previous(1981 build) boat had a solid plastic grey water collecting tube, running north/south suspended in the bilge, forward to a grey water tank with a large bilge pump which could suck start a Harley Davidson, actuated by a flipper switch. OEM, taking all grey water. Worked a treat unless the wretched flipper got gummed up.
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Old 05-09-2021, 11:00 PM   #11
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We've used the Whale Intelligent shower pump for the past 5 years- will never go back to a box with a float switch!
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Old 05-10-2021, 06:47 AM   #12
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I have the whale gulper set up with their box. Works great, no residue or odor.
I like the idea of no box at all...but the box may be the best solution.

With any box, there must be some water sitting there. Sitting water = odors. Is their design different that it isn't an issue?

Is there a filter in the box, or does the pump suck and spew it all?

Thanks
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