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1. Which of the following statements about the production of

1.   Which of the following statements about the production of fixtures with vitrified porcelain is true?  A. It's fast and inexpensive.  B. It involves extremely high temperatures.  C. The process has been abandoned.  D. A sturdy metal base is required.2.   What is the best treatment for removing organic chemicals such as benzene or chloroform from water?  A. Using an activated charcoal filter  B. Adding soda ash or caustic soda  C. Filtering by reverse osmosis  D. Chlorinating the water3.   Which of the following statements about sodium hypochlorite is true?  A. It's effective in removing organic chemicals.  B. It's a mineral found naturally in most private wells.  C. It's used in water softeners for ion exchange.  D. It's the chemical compound that makes up bleach.4.   Which of the following additives will neutralize acidic water?      A. Hydrogen sulfide  B. Chlorine  C. Potassium permanganate  D. Soda ash5.   The amount of air pressure in a water-pressure storage tank is      A. always maintained at 50 psi.  B. removed by a vacuum break.  C. referred to as supercharge.  D. directly related to the supply piping diameter.6.   A sample of water is pH 5. Which of the following words describes this water?  A. Alkaline  B. Acidic  C. Hard  D. Neutral7.   One possible treatment for dissolving calcium and magnesium is through the process of  A. pasteurization.  B. reverse osmosis.  C. distillation.  D. filtration.8.   Which process closes the well's top?  A. Sealing  B. Grouting  C. Filling  D. Capping9.   Which sentence about using a zeolite water softener as a water treatment is true?  A. There may be an increase of salt in your diet.  B. The zeolite will kill any bacteria in the water.  C. The filter cartridge must be replaced regularly.  D. It requires a soda ash /chlorine tank.10.   Forcing a well point into the ground produces a _______ well.      A. forced  B. drilled  C. driven  D. bored11.   Which of the following is not a potential source of ground-water pollution?  A. Livestock feedlots  B. Surface water evaporation  C. Underground fuel tanks  D. Waste disposal sites12.   Exposing water to ultraviolet light is an effective way to  A. kill bacteria.  B. dissolve gasses.  C. measure impurity levels.  D. remove dissolved minerals.13.   Tapping a municipal water supply for a new residence would most likely      A. improve alkaline pH levels.  B. occur only where shallow wells are common.  C. help remove air from the municipal system.  D. not interrupt the neighbor's water supply.14.   Water containing bacteria, protozoa parasites, and viruses is made potable through treatment with  A. an activated charcoal filter.  B. chlorine.  C. a clarifier filter.  D. a sediment filter.15.   Which of the following well installation methods is best for producing the deepest wells?      A. Rotary drilled  B. Dug  C. Percussion drilled  D. Driven16.   Water is decontaminated by being forced through a membrane in a process known as  A. ultraviolet purification.  B. reverse osmosis.  C. distillation.  D. backflushing.17.   A well extends into _______ to obtain water.  A. the frost line  B. the sand layer  C. soil and clay  D. an aquifer18.   A submersible pump's capacity depends on the  A. size of its check valve.  B. number of stages.  C. size of the pressure tank it supplies.  D. level of backpressure from fixtures installed in the plumbing system.19.   What kind of pump employs a venturi tube to increase water pressure?  A. Helical  B. Centrifugal  C. Lift  D. Jet20.   Most modern shower bases  A. come in standard sizes.  B. are made from recycled materials.  C. are no longer produced from plastics.  D. are installed after the surrounding walls are finished.

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I've temporarily moved to the Philippines. I'm having

I've temporarily moved to the Philippines. I'm having trouble with using the tap water. What can i do inexpensively to use the water?

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Rick

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I have a Rinnai solar hot water system, installed 2008. The

I have a Rinnai solar hot water system, installed 2008. The copper outlet pipe, which sometimes drips hot water, currently has hot water streaming out of it like it's a tap. Surely this isn't right! What do I do?

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WCohn

Journeyman Plumber

Journeyman License

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I have a Rheem PDV75 hot water tank (manufactured 2012) and

Hi,I have a Rheem PDV75 hot water tank (manufactured 2012) and it has a ring of water around it at the base. I would say, it's mostly 1 inch, sometimes 2 inches wide, away from the base of the tank, and it seems to be pretty much all around the tank (hard to see all the way at the back)I just bought the house (been there for 2 days) and it wasn't like that when I walked through it. Have been showering, etc obviously, could that be the reason why?Any thoughts, things to check, would be much appreciated.Dan

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Rick

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I have a well system – we woke up, and there was no water.

Hello. I have a well system – we woke up, and there was no water. Nothing came from spigots. I change the fuses the well pump box downstairs, flip the breaker back-and-forth as well – nothing. The pressure gauge on the bladder tank reads zero. I called my well company, but I'm getting the impression I may be on my own until Tuesday. Any ideas?JA: Sometimes plumbing issues that that you think will be really complicated end up being easy to fix. The Plumber I'm going to connect you with knows all the tricks and shortcuts.Customer: Thanks much!JA: Do you plan on doing the work yourself?Customer: That's not my first choice, but it's looking like my only one. I'm willing to give it a goJA: Anything else we should know to help you best?Customer: Nothing else comes to mind. Pump was replaced perhaps 7-8years ago.JA: OK. Got it. I'm sending you to a secure page on JustAnswer so you can place the $5 fully-refundable deposit now. While you're filling out that form, I'll tell the Plumber about your situation and then connect you two.

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Rick

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Doing the same thing I get water pressure more than before

Hey mike doing the same thing I get water pressure more than before but it just dies and I have no water at all

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Our shower stopped mixing water properly last Friday. It is

Hi, our shower stopped mixing water properly last Friday. It is a topliss shower mixer. We have a wetback fire and we are on low pressure. We had a plumber out on Friday and he replaced the whole mixer part in the wall behind the shower mixing tap. He put the old tap back on. He also installed a slide shower for low pressure for us as we had a fixed rose before. The mixer was still not working when he finished and he didn't know what was wrong so said he would send someone else on Monday! Monday came, and the next plumber they sent said there was just air in the pipes and flushed them through. however, when we had showers the next morning the water still was not mixing properly. We used to be able to have the tap half way round for the water to mix to a great temperature for a hot shower. Now we need to turn the tap all the way round to the hottest setting to get hot water and then there is less pressure and the water is scolding. If you turn it down at all, it just goes luke warm or cold. The plumber came back on Tuesday and told us it was the shower head causing the problems, and put a better one on for low pressure. It didn't make much difference, and the mixing still doesn't work. We called him back on Wednesday and he looked in the roof space. He said we could get rid of the header tank, put in a pressure reducing valve, and put in a solar temp valve and this would fix the problem. They came back today to do this. When I got home tonight, the pressure is the same as normal which is not a problem, but the mixer still doesn't work like it used to. We still have to turn it right around to the hottest setting to get pure hot water, and if we turn it down it is Luke warm to freezing! I am at the end of my tether with the plumber now! What could be causing this? The mixer in the wall behind the tap - would it have temperature settings on? If so, could the problem be something as silly as these being set wrong by the first plumber on the first call out?

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WCohn

Journeyman Plumber

Journeyman License

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I have an older bath tub and faucet. Coming from the faucet

I have an older bath tub and faucet. Coming from the faucet is a bunch of flared connections and an old 1/4 copper line, hot and cold service. For whatever reason the hot water line sprung a leak in the middle of the line. I am wanting to run new pex line to the faucet but am unsure how to connect the pex line to the faucet backing. I am not at the property to have a look. Is there usually a standard connection that comes off the back of the tub faucet? I am thinking I could use like a threaded 3/4 inch connection with a pex end but I'm not sure?

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WCohn

Journeyman Plumber

Journeyman License

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I work as a janitor in school years. I am being accused of

I work as a janitor in school for 18 years. I am being accused of leaving a faucet open in the classroom ( on the 2nd floor ) of a double sink and as a result causing first mentioned 20 now they say up to 40K in damages in the office below and the basement.I remember hearing a water drip at a very fast pace in one of the spigots on the right side of the right sink. So I tightened it until it stopped and shortly after I left the room.I was the last person in the classroom according to the cameras in the hallway.The next morning there was a big flood supposedly caused by a faucet left open on the right. In the faucet on the left they removed couple of faucet valves and the main water supply line was closed.What might have caused the flood. Both of the center faucets over each sink ( each sink has 3 taps) have been leaky for months probably longer.What might have caused this kind of flood.

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duane

Vocational, Technical or Trade School

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