[Public-List] Drain hoses

[scott at scottmaury.com]

Mike, this is good info.

I had bought brand new Groco valves at Bacon's the other day. (great  
price?)  but for 1.1/4" thru hulls and so I'll return them.

I've been on the Groco website and now know what size I need....

1" thru hulls & valves, to 1.1/4" hoses fitted to the deck drain fittings!

I do not want modify the hull hole sizes! and I'm not going to change  
the original design. although

I love to hear what others have done. (thanks all)

I may put a third drain in the cockpit out the back...later!

Thank you Mike







Quoting Mike Nikolich <mike.nikolich550 at gmail.com>:

> Scott,
>
> Prior to the 2021 season I replaced these through-hulls, valves,  
> fittings, and some of the hoses.
>
> The through hulls are 1" ID.  I installed Groco FBV-1000 flanged  
> hull valves on TH-1000 through hull fittings and did not have to  
> modify the holes in the hull.  Groco also makes a composite backing  
> plate with holes pre-drilled for their flanged hull valves. I used  
> 5200 to stick it to the hull, then installed the through-hull and  
> valve and let everything cure. On top I have a T fitting and hose  
> barb fittings.  The straight hose fittings I used are Groco FF-1000,  
> which takes a 1 1/4" ID hose.  For the cockpit drains I used  
> 45-degree fittings to minimize bends and make the short hose run  
> easier to hook up. (I got those elsewhere, Groco doesn't make a  
> 45-degree version of the FF-1000). I don't remember the exact hose I  
> used, other than it was Trident wet exhaust hose. (I had purchased  
> the hose much earlier, then finally installed it after replacing the  
> valves.) They make a version for short runs without the wire inside  
> but I don't remember if I found it in 1 1/4". I did not change the  
> deck or cockpit floor fillings.
>
> I have not used Sani-flex hose but have heard good things about it's  
> flexibility.  However, I don't know if it is rated for  
> below-the-waterline applications like this that are continuously  
> open to the sea.
>
> As Marcelo pointed out, how appropriate 1" through-hulls are to  
> handle the combined cockpit and scupper drain flow is an entirely  
> different discussion. He presented a good solution.  I believe Mike  
> Lehman did something similar. He left the hose sizes and  
> deck/cockpit floor fittings the same but ran the scupper hoses to  
> their own through-hulls in the transom, above the waterline like  
> Marcelo.
>
> Cheers!
> Mike
>
> Mike Nikolich
> s/v Skybird
> Alberg 30 #550
> mike.nikolich550 at gmail.com
>
>
>
>
> On Feb 15, 2023, at 3:16 PM, Bill of Rights #487 via Public-List  
> <public-list at lists.alberg30.org> wrote:
>
> Hope all is well to all sailors!
>
> Looking to replace all hoses related to the deck and cockpit  
> including the "in-line" valves and thru hulls. My hoses have crushed  
> and easily clog. Of course when I dissemble everything I have to be  
> weather weary as if I don't get it back together, the boat could  
> flood from deck water.
>
> I'm almost sure the fittings are 1 1/4" thru hulls, in line valves,   
> and 1.5" hoses. Can anyone tell me that I'm wrong ?  I am starting  
> to acquire the needed supplies and don't need the wrong items.
>
> 487 has a liner and the cockpit fittings are manufactured by whitby   
>   1 1/2"  hoses?  is that correct?
>
> I've got my mast down as well and so it's being refurbished- fun!
>
> Thank you Scott
>
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