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Barry, who did you do the tests for?

Bob - In London, UK there was a cholera outbreak in the late 1800's due to sewage discharges into the Thames, just upstream of the raw water abstraction point, which resulted in the first (apparently) slow sand filter construction. You could search the Institution of Civil Engineers site...

Tgrief: I should have clarified that I'm interested to learn to do p+id's for simple domestic water pump stations, say with 1 duty and 1 standby pump where we're monitoring suction and discharge pressure, flow rate, pump speed and have a timed delay on pump start up after shut down. KRS: Thanks...

Gere's my scenario: Water transfer pump. Static head on the system is about 395 feet, which we're pumping (VFD) against to deliver water to a tank some 1.4 miles away. Using a GA Industries 4" surge relief valve, low velocity of 5 fps (1650 usgpm), to be set to discharge to waste (may...

Developing them.

Having read the above, I now submit my scenario: Static head on the system is about 395 feet, which we're pumping (VFD) against to deliver water to a tank some 1.4 miles away. Using a GA Industries 4" surge relief valve, low velocity of 5 fps (1650 usgpm), to be set to discharge to waste...

Anyone have any resources on the above? My goal is to learn how to do p+ids for pumping stations, water treatment plant, etc. Thanks (also posted in water treatment discussion)

Anyone have any resources on the above? My goal is to learn how to do p+ids for pumping stations, water treatment plant, etc. Thanks

thanks guys

Is there any way to copy the column widths when doing a copy in Excel?

The main reason I wanted it is because I often start a spreadsheet, get interrupted and when it comes time to close Excel for the day, I'm asked if I want to save my changes. If I know the last revision time it sometimes makes it easier to decide whether or not to save the changes. BUT, it...

Excellent Mutt. Works like a charm. Many thanks.

Many thanks. I solved the problem by showing the formulas

I've changed the name of a linked spreadsheet and want to find the cell that it was calling the link. How do I do this?

Mutt Many thanks. Unfortunately I don't how to activate visual basic, or just how to use the code you did up for me.

Hi folks I open a spreadsheet, leave it open for a while and later want to close it. Sometimes I make changes to it and sometimes I don't. I've got the NOW() command in a cell, so every time I go to close the sheet I'm promped if I want to save the changes. The NOW() command that is forcing the...

We're designing a pump station which has both domestic supply pumps and a diesel engine fire pump, discharging into the same potable distribution network--there's no separate pipe for the fire system. There's also an important sprinklered building on site fed through the network. I suppose that...

Initially we have 650 usgpm (one duty pump), but we've got pads for two more duty pumps. High head - about 430 ft. Do you know what the main differences in quality might be between a $3,500 and a $1,500 meter? It's not apparent to me.

Hi, Our approving authority doesn't put flow meters in their district water pump stations, and there are no residential meters either -- we all just pay a flat rate for water. I recommended a magnetic flow meter on the discharge mainfold for a pump station design because I want it for...

Can anyone give me a supplier of a vane switch. Need for control of my potable water pump. Want to shut it down at specified flow. Tried Flocat but their switch doesn't operate in my range of flows unless I go to a 8" discharge pipe from a 4" pipe, which I'd prefer not to do. Thanks...