Okay Alan, I'll bite, but if you're going to tell me it's your finger, then I'm going to ask which of your arms is 5-foot long, with three elbows, for those not so easy to reach tank locations!? Now get back to work! ;>) best regards, Mark C. -----Original Message----- From: caut-bounces at ptg.org [mailto:caut-bounces at ptg.org]On Behalf Of Alan McCoy Sent: Wednesday, June 07, 2006 10:27 AM To: College and University Technicians <caut at ptg.org> Subject: Re: [CAUT] Undercover - hooks and grommets Hey Fred and David, This digital sensing device to prevent overfilling exists already. I've been using one for years and it is foolproof, infinitely adjustable on-the-fly and cheap. It's in everybody's tool kit. Alan > From: Fred Sturm <fssturm at unm.edu> > Reply-To: "College and University Technicians <caut at ptg.org>" <caut at ptg.org> > Date: Tue, 06 Jun 2006 14:47:17 -0600 > To: "College and University Technicians <caut at ptg.org>" <caut at ptg.org> > Subject: Re: [CAUT] Undercover - hooks and grommets > > Hi Mark, > I can hear the end of the trickling sound okay, but I like to "push > the envelope" and add another half a liter or so beyond, to take care > of the last day of those two weeks between fillings during dry > periods. Me, I have no help and have to fill the darned things > myself. Once every two weeks I can handle. > It's a matter of learning how much water to add beyond the point > where the sound diminishes to nothing, and the precise timing of the > end of the trickle noise. Of course, this depends on the end of the > tube (its setting in relationship to the top/bottom of the tank) > being consistent from piano to piano. I overfilled precisely two > times (we have hard water, so it left plenty of evidence in the form > of minerals). Fine enough for me, but if you are training student > help, you'll want something more concrete. > There are plenty of possibilities, including installing one of those > beepers at just the right level (probes set at just below the target > water level), with a switch in its cord. Turn the switch on so it is > beeping when you start to fill, then stop adding water when it stops > beeping. And remember to switch it off now, to avoid annoying the > sensitive ears of the piano prof between services <G>. > Regards, > Fred Sturm > University of New Mexico > fssturm at unm.edu > > > > On Jun 6, 2006, at 1:20 PM, Mark Cramer wrote: > >> Question: Since you listen to the (faint) trickling sound when filling >> tanks, how hard should it be to make the filling process "noisier" >> i.e.: add >> somthing that rattles around at the end of the tube... ? >> >> or for that matter, why not a simple float that rises with the >> "tide" until >> it blocks the end of the filler tube? >> >> We really should be able to solve this thing. >> >> best regards, >> Mark Cramer, >> Brandon University >> >> >> >> >> >> >> -----Original Message----- >> From: caut-bounces at ptg.org [mailto:caut-bounces at ptg.org]On Behalf Of >> Fred Sturm >> Sent: Tuesday, June 06, 2006 9:36 AM >> To: College and University Technicians >> Subject: [CAUT] Undercover - hooks and grommets >> >> >> Hi all, >> Here are some pictures, as promised earlier, of my method of >> attaching an undercover, using hooks and grommets. It's the first >> such installation I ever did, and is an "under the beams" >> installation (before the new tanks which fit between beams), and with >> 48" (50w) rod (extends beyond the fabric - a neater job can be had >> with 38w, less wrinkling of fabric). Took me less than an hour to >> install, and really doesn't look too bad. I am better at it now, and >> can make a neater job of it for a fancy living room. This is in a >> faculty studio, and not at all in view. I was experimenting, and the >> grommets were added after a trial with tape, staples, and a hole. I >> find now that, with grommet squeezing pliers, I can just use the >> grommet to hold the fabric (create the "hem" and attach to the hook), >> and don't need the reinforcement of tape. The grommets in the picture >> were applied using a hammer, with punch and shaped anvil. The results >> were not very consistent, and it was much more time-consuming than >> pliers. $15 for the pliers was well worth the expense. >> Besides ease of installation. what I like about this system is ease >> of removal and replacement. Literally seconds to get it out of the >> way to service the tank and pads, and seconds to replace it. The >> observant among you might notice the tell-tale signs of over-filling >> the tank. I listen to the fill noise more carefully now. I manage to >> get two weeks between filling by maxing almost to the top of the tank. >> If anyone has questions, I'll do my best to answer, or perhaps take >> some different pictures. This was a hard set up for photography, as >> it is rather cramped (two B's next to each other), but it's the only >> undercover I have ready access to. The others I have installed are in >> private clients' homes. >> Regards, >> Fred Sturm >> University of New Mexico >> fssturm at unm.edu >> >
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