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- Path: sparky!uunet!charon.amdahl.com!amdahl!JUTS!RUTS.ccc.amdahl.com!bjs
- From: bjs@RUTS.ccc.amdahl.com (Barry Sherman)
- Newsgroups: rec.photo
- Subject: Re: Darkroom Ventilation
- Message-ID: <7f7d021W2b4U01@JUTS.ccc.amdahl.com>
- Date: 17 Nov 92 20:25:10 GMT
- References: <MAS.92Nov15124705@mipl8.jpl.nasa.gov>
- Sender: netnews@ccc.amdahl.com
- Reply-To: bjs@RUTS.ccc.amdahl.com (Barry Sherman)
- Followup-To: rec.photo
- Distribution: rec
- Organization: Amdahl Corporation, Sunnyvale CA
- Lines: 70
-
- Marc Sarrel writes:
-
- >
- >I'm in the process, finally, of making my bathroom light tight.
- >However, I fear that making it so will cut off all ventillation.
- >Here's a rough floor plan:
- >
- > small room for toilet
- > living room |
- > door |
- > | v
- > | +---------------------+----+
- > v | counter with sink | |
- > +----+---------------------+ |<- bathroom window
- >closet door ->| toilet door->| |
- > +--------------------------+----+
- >
- >
- >The bathroom window is one of those louvered types. In order to seal
- >the doors, I was planning to use a combination of weatherstripping,
- >towels on the bottom and maybe some dark fabric hanging down if the
- >weather stripping isn't sufficient.
- >
- >However, this room would then have no ventillation. There are no HVAC
- >ducts in there at all (love those building codes).
- >
- >There is a transom window above the toilet door, but it is not hinged
- >in any way. The high-tech method would be to replace it with a fan,
- >but that seems expensive.
-
- Don't forget that just putting in a fan would be insufficient as it's also
- necessary to have an air *inlet*. In my darkroom, converted from an extra
- bedroom, I placed two "louvered vents" in the door. These are just openings
- which are made light-tight. Then in the opposite door, opening to the back
- yard, I placed a darkroom ventilation fan and a window air conditioner.
- I rarely use the ventilation fan, except when using the more noxious
- stuff and sometimes during the winter. (Needless to say, both doors will have
- to be replaced before I can sell the house.) During the summer I run the air
- conditioner, but that's for comfort more than ventilation. Besides, it'd
- be difficult to keep the solutions in the trays at 68 F with the room
- temperature's up around 95 F.
-
- Anyway, I personally don't find the aromas from standard b/w chemistry
- annoying enough to bother with ventilation, and find that I don't need much,
- if any, when doing Ilfochrome in the Jobo as the chemistry is enclosed all
- the time.
-
- So is all that ventilation needed? Good question. I do like having it
- available when mixing P-3 chemistry with its strong sulfuric acid. And
- like having it when I'm doing selenium toning as I think that's a most
- obnoxious smell. Or mucking about with pyro or catechol. But I'm not aware
- that he odors of acetic acid, fixers and standard paper developers are
- dangerous. Anyone know for a fact?
-
- Barry
- --
-
-
- |----------------------------------------------------------------------------|
- | Barry Sherman, Amdahl Corp. | PROGRAM: n. A magic spell cast over a com- |
- | bjs@ruts.ccc.amdahl.com | puter allowing it to turn one's input into |
- | | error messages. tr.v. To engage in a pas- |
- | | time similar to banging one's head against |
- | | a wall, but with fewer opportunities for |
- | | reward. |
- |----------------------------------------------------------------------------|
- | Amdahl, being a corporation, is a legal fiction. Therefore it is incapable|
- | of holding, let alone expressing, opinions. Unfortunately, this has been |
- | said of me as well. |
- |----------------------------------------------------------------------------|
-