DIY darkroom sink

[jtomasella]

For those of you that are handy, this the sink I made and what steps I took. The inside dimensions of the sink is 94 1/2"x25 1/2"



I started by routing a grove with a 1/4" of pitch from one end to the drain end.



Here is the drain hole. I used a 3" hole saw bit to drill the hole then routed it deep enough for the fitting and gasket. If I need the strainer that will stick up a little, but I figured I wouldn't be using that too often.



Here is the drain fitting test fit for depth. I used a 2" shower drain which will have a 1 1/2" line and trap going to the sewer.



I used deck screws and screwed the sides every 4"

[jtomasella]

I routed both sides of the top edges just so it was smoother on the arms.



Here it is with 2 coats of fiberglass with mess around the bottom seem.



The stand with the shelf mounted and my RO water filter for the reef tank which I also use the water for when I develop.

[scheinfluger_77]

Nice looking sink, does it take 3 men and an an elephant to move it?

[jtomasella]

Nice looking sink, does it take 3 men and an an elephant to move it?

Haha, no I can actually carry it myself. It's only made from 1 sheet of 3/4" plywood.

[Kodak]

Really nice job.
Wood is not the first material I would think about when building a sink.
So you cover the inside with fibreglass?

[jtomasella]

Really nice job.
Wood is not the first material I would think about when building a sink.
So you cover the inside with fibreglass?

Yes, I decided to use fiberglass instead of the West system.

[Kodak]

Yes, I decided to use fiberglass instead of the West system.

Sorry to ask, but what is the West system?

[Roger Thoms]

Sorry to ask, but what is the West system?

Boat building epoxy. It’s a versatile system with different speed hardeners to control the working time depending on the ambient temperature. The are are various additives to thicken the epoxy.

https://www.westsystem.com/

Roger

[Jim Noel]

Sorry to ask, but what is the West system?

West System epoxies are sold in marine stores, or those selling to the boating trade. It is a 2 part system which flows like water when mixed but dries hard. It is guaranteed not to leak for 10 years when applied to the outside of a boat. .My sink was built in 1989 and is still going strong. O put one addtional coat on it in 2000.

[Willie]

Will you have it on a set of legs, the Sawhorses or another platform? Have seen some good sinks put on desks or tables that are nice and solid. A friend's darkroom has his 12 foot sink on two surplus Government desks. The big, heavy metal type from Army surplus. Cost him $10 each and a few friends to help get them into his darkroom. Bonus is the storage space for chemicals and supplies they give him. He did cut some 2x4 pieces and trimmed for size so he got a slope from one end to the drain at the other. He has been using it now for more than 20 years and still going strong.

On top a wood tray similar to yours, padded for quiet and heat control for water bath use with trays.


Being a longer sink he plumbed in two spigots, one near each end.