I am trying to find a timer that when power is put it will be in the off mode for a designated period of time like 63 (or more) hours and then when that time is up it will be in the on mode for a period of time like 21 (or more) hours; cost needs to be low; A weekly timer won't work due to the rotation of the days/hours and I can find a timer like this that will only be on/off for minutes vs hours; Any ideas?
Timer
- Thread starter rrrusty
- Start date
- Status
A
a.wayne3@verizon.net
Guest
Re: Timer
If I remember right Home Depot sells a electronic timer that will take whatever settings you enter in.Its small made for a single device space and cost is somewhere around $30
If I remember right Home Depot sells a electronic timer that will take whatever settings you enter in.Its small made for a single device space and cost is somewhere around $30
bphgravity
Senior Member
- Location
- Florida
Re: Timer
I'm curious. Exactly what is this process for. I have performed a lot of automation control work and can't come up with a process that would require something off for up to 60-hours, and then on for 20-hours. It just sounds odd.
I'm curious. Exactly what is this process for. I have performed a lot of automation control work and can't come up with a process that would require something off for up to 60-hours, and then on for 20-hours. It just sounds odd.
- Location
- Massachusetts
Re: Timer
That is kind of odd.
If you can not find a timer for this a small PLC would do it but it will not be that cheap.
That is kind of odd.
If you can not find a timer for this a small PLC would do it but it will not be that cheap.
chicar
Senior Member
- Location
- Lancaster,Pa
Re: Timer
How about a electronic low voltage programmable thermostate via lv trans. and contactor.
How about a electronic low voltage programmable thermostate via lv trans. and contactor.
Re: Timer
I have a customer who has a well and they have ran it down to the point of 1/2 gal per min vs the 7 1/2 gal per min since they have only this little amount of water I feel that if they give they well a rest of 2 1/2-3 days then the well should recover; there 168 hrs per wk and I am only trying to have the pump come on for 21 hrs per wk; They have had to have a cistern installed and have to buy water, a tank of water usually lasts about 10 days, If the well can recover to the point of the 7 1/2 gal then they should be able to rid of the cistern
the reason behind the hours vs the days of the wk is there are 7 days in a wk and I am trying to break up the pattern so that the time on/off is even (off for 63,on for 21) with 7 days the timing changes ; I know about the Electronic timer that Intermatic has that fits in a 1 g box and a PLC will cost a bit more; I did find an Ice Cube timer but that only has a on/off of minutes not hrs
I have a customer who has a well and they have ran it down to the point of 1/2 gal per min vs the 7 1/2 gal per min since they have only this little amount of water I feel that if they give they well a rest of 2 1/2-3 days then the well should recover; there 168 hrs per wk and I am only trying to have the pump come on for 21 hrs per wk; They have had to have a cistern installed and have to buy water, a tank of water usually lasts about 10 days, If the well can recover to the point of the 7 1/2 gal then they should be able to rid of the cistern
the reason behind the hours vs the days of the wk is there are 7 days in a wk and I am trying to break up the pattern so that the time on/off is even (off for 63,on for 21) with 7 days the timing changes ; I know about the Electronic timer that Intermatic has that fits in a 1 g box and a PLC will cost a bit more; I did find an Ice Cube timer but that only has a on/off of minutes not hrs
tonyi
Senior Member
Re: Timer
FWIW, there are tests that will tell exactly what a well's recovery time is.
Depending on what the local conditions are, the well may be able to be improved considerably by refracturing (explosively shattering the rock near the bottom), or going a bit deeper to punch through a shale ledge if the well is a relatively shallow one (if it "goes dry" in the summer, it may be above one of these type ledges).
The usual solution for slow producers in the north east is a holding tank and jet pump affair.
FWIW, there are tests that will tell exactly what a well's recovery time is.
Depending on what the local conditions are, the well may be able to be improved considerably by refracturing (explosively shattering the rock near the bottom), or going a bit deeper to punch through a shale ledge if the well is a relatively shallow one (if it "goes dry" in the summer, it may be above one of these type ledges).
The usual solution for slow producers in the north east is a holding tank and jet pump affair.
Re: Timer
Bennie; sounds like a winner, Thanks
Tonyi; We have very deep wells out here and we are also in the mountains; with this on going drought we have had water restrictions and some communities went dry; Water from a well in certain areas is a luxury but in very remote areas alot of people have to have water purchased and trucked in; Thank you for your input, It is appreciated
Bennie; sounds like a winner, Thanks
Tonyi; We have very deep wells out here and we are also in the mountains; with this on going drought we have had water restrictions and some communities went dry; Water from a well in certain areas is a luxury but in very remote areas alot of people have to have water purchased and trucked in; Thank you for your input, It is appreciated
tonyi
Senior Member
Re: Timer
Any well guy can do it. Basically, they'll pump it down X number of feet, then watch it fill back up and measure the time to refill back to a known point. 1/2 gpm is a pretty lousy well BTW...
Another thing these folks might look at is rain water collection. Most older places in the north east had elaborate rain collection schemes and the architectures reflected this with things like "Philladelphia" and "Yankee" gutters and such and large masonry cisterns in the basements. Might not want to drink it (grit, bugs ets), but its fine for flushing the john or plant watering.
Any well guy can do it. Basically, they'll pump it down X number of feet, then watch it fill back up and measure the time to refill back to a known point. 1/2 gpm is a pretty lousy well BTW...
Another thing these folks might look at is rain water collection. Most older places in the north east had elaborate rain collection schemes and the architectures reflected this with things like "Philladelphia" and "Yankee" gutters and such and large masonry cisterns in the basements. Might not want to drink it (grit, bugs ets), but its fine for flushing the john or plant watering.
- Location
- Bremerton, Washington
- Occupation
- Master Electrician
Re: Timer
Rain water collection can be very successfull. One family in prtland saved so much water they got a call from the water utility.
And as far as pumping goes, many water well pumps are now variable speed, with no holding tank. The motor is programmed out of the hole and then installed. Grundfos has a good variable speed domestic pump. It may be possible to match the well yeild to the pumping rate.
Wells are commonly rated in gallons per foot of drawdown. A high number is good.
Rain water collection can be very successfull. One family in prtland saved so much water they got a call from the water utility.
And as far as pumping goes, many water well pumps are now variable speed, with no holding tank. The motor is programmed out of the hole and then installed. Grundfos has a good variable speed domestic pump. It may be possible to match the well yeild to the pumping rate.
Wells are commonly rated in gallons per foot of drawdown. A high number is good.
- Location
- Illinois
- Occupation
- retired electrician
Re: Timer
If you can live with a maximum off time of a little less than 52 hours, then this relay will work for you. You would set it for the "recycle" mode with either the off time first or the on time first.
don
If you can live with a maximum off time of a little less than 52 hours, then this relay will work for you. You would set it for the "recycle" mode with either the off time first or the on time first.
don
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