Water Tank Access Hatch Source

[sv.Crake]

Hi,

Does anyone know of any off the shelf access hatches that I could install in a potable water tank?

I've got a 100gal integral fiberglass watertank in my cheoy lee 38'. The tank is divided into 3 sections with baffles. Two of the sections have access hatches for cleaning. One does not.

I opened the two hatches that I do have access to and found that the tank is very dirty... Mold, dirt, etc etc...

I need to clean the inaccessible section before using this tank for anything. I want to cut an access hatch in to it but I'd like to buy an off the shelf hatch to bolt or glass in. I'd like to avoid making my own hatch if there is something easy and cheap i can find online.

Any ideas?

Thanks!
Trevor

[SabreKai]

Holland Marine Products lists two watertight bulkhead hatches with aluminum frame and cam locking which might do the job. I have no idea of the dimensions but they should be large enough to work through as they are for lifeboat storage lockers. Not badly priced either, about $60-70 CAD.

[mbianka]

I bought a 8 inch Inspection Port from Defender for conversion of a fuel tank to wash down water tank on board. Think it was around $22 U.S.
BTW found this very useful to make sure I would not be cutting into any baffles when installing the port:
THE BIANKA LOG BLOG: TOOLS OF A SAILOR: INSPECTION CAMERA