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Q: Does bleach help unclog house ac condensate drain line?
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Continue Learning about Chemical Engineering

Can you use liquid plumber with a septic tank?

== == According to Drano all of there products are safe for septic systems. Will Drano® products harm my septic system? No, all Drano® products are safe for septic systems and will not harm the bacterial action in septic systems. Follow the package instructions for the right amount of product to use. - http://www.drano.com/unclog-drain/ Although claims are often made that commercial cleaners are safe for Septic Systems, a scientist from the National Environmental Services Center that we interviewed recently disagrees: "Using commercial chemical drain openers to unclog drains is not recommended for homes that are on septic systems." For more information see: http://www.septicsystem.com/can-i-use-drano.html


What is the basic operating principle of a flash tank?

What You Should Know About Flash Tanksby J. E. TROCOLLI • Sarco Co., Inc. • Allentown, PA (Actual Specifying Engineer/71)High-pressure steam systemsrequire flash tanks -here is a guide to determining sizesCondensate temperatures in high-pressure steam systemsgenerally are only slightly less than the saturatedtemperature of the steam. When hot condensates are dischargedinto lower-pressure areas, condensate temperatureimmediately drops to the saturated temperature ofthe low-pressure area. As the result of the drop in temperature,heat released evaporates a portion of the condensate,generating flash steam.To return condensate to the boiler or to discharge it tothe sewer, it is necessary to separate flash steam fromthe condensate. This is accomplished by discharging condensatethrough steam traps into a vented tank, referredto as a flash tank.Flash steam produced in the flash tank may be ventedto the atmosphere or piped to a low-pressure main. Condensateremaining may then be returned to the boiler ordischarged to drain.Tanks must be large enough to ensure dryness of thereleased steam and to avoid carryover by the steam ofwater in droplet form. When using horizontal flash tanks,the required area is found by multiplying the diameter ofthe tank by its length. This measures the tank's capacityto handle condensate. Table 1 illustrates the required areafor each 1,000 lb. of condensate/hour with varying steamand flash pressures.How big a tank?Problem:An absorption machine condenses 12,000lb. of steam/hr. Assuming the flash tank is vented to theatmosphere, determine the size of the flash tank requiredwith a steam pressure of 12 PSIG.Solution:Enter table 1 at 12 PSIG steam pressure,moving horizontally to 0 PSIG. Find .75, which is the numberof square feet required for each 1,000 lb. of condensate.Since 12,000 lb. of steam are generated, it may bedetermined that by multiplying 12 x .75, 9 sq. ft. of surfacewill be required, or that the diameter of the tank infeet times its length in feet must equal 9. Thus, a tank 2ft. by 4.5 ft. may be used.Problem:A dryer operating at 100 PSIG condenses18,000 lb. of steam/hr. The flash tank is to discharge itsflash into a 5-PSIG heating main. Determine the size ofthe flash tank required.Solution:Again, using table 1, enter at 100 PSIGinitial pressure. Move horizontally to the 5-PSIG columnand find 1.92.Then:18 x 1.92 = 34.6 sq. ft.A flash tank 4 ft. by 9 ft. will be satisfactory for theapplication.Sizing vent linesIf flash steam is to be discharged to the atmosphere,a properly sized vent line must be provided. To determinethe proper size, first find the area of the flash tank,using the method described above.Problem:Determine the size of the vent line usingtable 2. If, as in the first problem, tank size is 2 ft. by 4.5ft. (9 sq. ft.), refer again to table 2, where 9 sq. ft. falls on7.4-to-12 line. For this range, a 2-in. vent line would besatisfactory.Problem:Determine the size of the vent line if theflash tank size is 4 ft. by 9 ft. or 36 sq. ft. In table 2, 36 isin the 27-to-36 line, and, in this case, a 31/2 in. vent wouldbe needed.Figure 1 shows a typical flash-tank piping diagramin which the flash is discharged to the atmosphere.If it is desired to utilize the flash steam by dischargingit into a low-pressure main, refer to figure 2. In thisinstance, it will be necessary to properly size the lineconnecting the flash tank to the low-pressure main.Using table 3, determine the percent of flash. Multiplythis percentage by the condensate load in lb./hr. todetermine the number of pounds of steam that are flashed.Determine what steam velocity will be acceptable in theline. If a low noise level is desired, a relatively low velocitymust be selected - 4,000 to 6,000 FPM.Where noise is not a factor, a velocity of 12,000 FPMor higher may be used. After velocity has been determined,the required pipe size can be found in table 4.Problem:10,000 lb./hr. of condensate is dischargedinto a flash tank from a 125-PSI steam system. Flashsteam is to be piped into a 10-PSIG low-pressure heatingmain. Determine the size pipe required for connectingthe flash tank to the steam main.Enter table 3 at 125-PSI initial pressure. Move horizontallyto the 10-PSIG column and find 12.2 percentflash. Then the amount of flash steam/hr. is found thisway:10,000 x 12.2 percent = 1,220 lb./hr.SECTION ENG - PAGE 0100FLASH TANKSTABLE 1 FLASH TANK IN SQ. FT. = DIAMETER x LENGTH OF HORIZONTALTANK FOR 1,000 LB. CONDENSATE PER HOUR BEING DISCHARGEDTABLE 2 VENT LINE SIZE TABLE 3 PERCENT FLASHFOR HORIZONTALFLASH TANKS½"FLASH TANKSTABLE 4 STEAM VELOCITY CHARTFORM FLASH TANKSRevised 4/04 SHIPCO® IS A REGISTERED TRADEMARK OF SHIPPENSBURG PUMP CO., INC.SHIPPENSBURG PUMP COMPANY, INC.,P.O. BOX 279, SHIPPENSBURG, PA 17257 • PHONE 717-532-7321 • FAX 717-532-7704 • WWW.SHIPCOPUMPS.COMPRINTED IN THE U.S.A. • BEIDEL PRINTING HOUSE, INC., 717-532-5063 PERMISSION TO REPRINT BY SPIRAX SARCO INC.Since low noise level is important, a velocity in the4,000 to 6,000 FPM range must be selected. Enter table4 at 1,220 lb./hr., moving horizontally to a flash-steampressure of 10 PSIG. Then move up to 4,000 to 6,000FPM velocity. Here, the chart shows that a 3-in. pipe willhandle about 6,000 FPM, or a 4-in. line would handleabout 3,500 FPM.When vent lines cannot be extended to dischargeoutside the buildings, it is important that the condensatebe cooled below the dewpoint to prevent the exhaustfrom condensing and wetting walls, machinery, floors andso on.Estimating temperatureSince the dewpoint depends on several factors, includingrelative humidity and temperature (which are variable),the temperature to which the condensate must becooled should be estimated for individual cases.The following is the recommended procedure:Calculate the size of the flash tank in the methoddescribed above:Estimate the dewpoint, assuming unfavorable conditions,and, when making the estimate, take ventilation intoaccount - it is a factor in determining relative humidity:Once the dewpoint is known, estimate the quantityof cooling water that will be required and finally:Determine the pipe size and size of temperatureregulator valve required. A self-contained regulator witha normally closed valve to open when the temperaturerises is recommended. All such controls have an amplerange over and under the calibration point so that settingmay be adjusted after installation.Problem:Calculate the quantity of cooling water requiredto cool condensate in a flash tank vented to anenclosed space, assuming the following data:Steam pressure is 100 PSIG;Condensate is entering the flash tank at 1,550 lb./hr.at 335°F;Ambient temperature of the space into which ventdischarges is 75°F; andCold water temperature is 50°F.Assuming that ventilation at the above temperaturewill be sufficient to have not more than 70 percent relativehumidity, the dewpoint will be 64.5°F (determinedfrom psychrometric chart).To allow 1°F for safety, condensate should be cooledfrom 338°F to 63.5°F. When the installation is completed,further adjustment can be made by resetting the regulator.The heat to be extracted from the condensate is equalto:1,500 lb./hr. x (338-63.5)°F = 410,000 BTUHThe quantity of cooling water required:410,000 BTUH(63.5 -50)°F= 30,500 lb./hr.or 3,670 GPH = 61 GPMA 1.5-in. pipe to supply the water and a 1.25-in. temperatureregulator are recommended for this application.Flash tanks separate flash steam from the condensateby venting the flash steam to the atmosphere orpiping it to a low-pressure main, while returning the remainingcondensate to the boiler or discharging it to thedrain. If flash steam is discharged to the atmosphere, aflash tank and a properly sized vent line must be determined;if discharged to low-pressure mains it is necessaryto calculate the correctly sized line connecting theflash tank to the low-pressure main. Also, the proper temperaturefor cooling the condensate must be determinedfor projects in which vent lines cannot be extended todischarge outside the buildings.Different situations require individual solutions to determinethe correctly sized flash tank, connecting pipeand cooling temperature needed, but the calculation examplesoffered here provide the means to determine thenecessary installations and accessories required.Figure 1A typical flash tank pipingdiagram discharging to atmosphere.NOTE: Omit trap if condensate isdischarged into vented pump receiver.Figure 2A typical flash tank pipingdiagram with flash discharging to lowpressuresteam system.Figure 3This diagram depicts acombination flash tank installation withsubcooling condensate.VENTPRESSURERELIEF VALVEVENT IFDESIREDTO LOWPRESSURE MAINHIGH PRESSUREFROMCONDENSATEHIGH PRESSURESYSTEMFLASH TANKSTRAINERFLOAT ANDTHERMOSTATICTRAPFIN TUBECOOLING LEGREQUIREDTO LOW PRESSURERETURN LINE ORDRAINVENT TOATMOSPHEREHIGH PRESSUREFROMCONDENSATEHIGH PRESSURESYSTEMFLASH TANKSTRAINERFLOAT ANDTHERMOSTATICTRAPFIN TUBECOOLING LEGREQUIREDTO DRAINCONDENSATEFROM HIGHPRESSURESTEAM SYSTEMTEMPERATUREREGULATORSTRAINERCOLD WATERSUPPLYVENT TOT ATMOSPHEREWATER LEVELCOILDRAINTO SEWERFLASH TANKS


Why would a flexible flue liner be recommended for a chimney?

A flue liner is a flexible sleeve inside the pipe that carries the combustible products, such as smoke, up from the fire away from the living area, and into the atmosphere, outside the house. A liner is needed in case the flue is cracked or damaged, causing the smoke to stay in the house, or causing cold wind from the outside to come into the house. A flue liner is added protection to keeping the house safe from fumes.


Can noxious fumes be emitted from furnace?

YES from the exhaust gas. If the exhaust flue has a leak or the heat exchanger has a leak into the house air Carbon Monoxide can build up in the heated house air and kill anyone in the house. The major problem is a person can not smell carbon monoxide. If you are getting frequent headaches have a heating contractor check your house air for carbon monoxide or buy a carbon monoxide detector at a hardware store and test your air yourself.


Water Treatment System Repair?

form_title=Sewer System Repair form_header=11053 What issues are you experiencing with your sewer system?*= [] Clogged plumbing fixture drain [] Basement drain backing up [] Garage drain backing up [] Sewer smells permeate the house [] Other

Related questions

What should you do if you have condensation coming into your house through the ducts in the winter from the roof unit?

Find the condensate drain and make sure it is open. If there is no condensate drain, figure out how to drain the condensate.


Is a central AC supposed to leak water inside of a house?

Condensate always forms on the evaporation coil and the amount of water depends on the dew point and the temperature of the coil. All air conditioner installations are supposed to include a drain line for taking the condensate away, possibly to a floor drain.


How can you unclog the house air conditioning drain pipe?

The house air conditioning drain pipe can be unclogged using pincers made especially for that pipe. A hardware store sells a type of pincer that has a telescoping end to reach into tiny spaces to clean out debris.


Is it normal for the condensate overflow tubes to blow cool air when is ac is running for central house ac?

The answer in most cases is YES. The reason that the air is coming out of the condensate overflow (drain) tubes is because there is a positive air pressure being exerted by air handler or furnace. There are some systems where there is a negative air draw on the drain and could possibly be capped. Depending on the configuration of the unit and the location of the evaporator coil it could be a normal part of the operation of the condensate overflow to have air coming out. Depending on the way the condensate drain was designed, it may be required to be "open" in order to drain properly. Covering or capping the drain opening could cause it not drain properly or back up. There is no way to know if should be covered or not from a discussion. You would have to see the actual drain design and orientation of the equipment to decide if it should be covered. It was designed and installed that way then leave it alone. Otherwise, a professional should SEE it before making any changes.


What do plumbers do?

They unclog Toilets and other plumbing in the house


How is the best way to unclog the main drain under a house?

Use a acid strong enough to burn through dirt but not strong enough to burn through metal adicdasy level should be around 1.5.


Why does my home Air Conditioner smell sweet?

The drain is clogged and there is water and crap fermenting in the bottom. I have a trane in the garage and it was also making a sweet nasty odor throught out the house. I turned the unit off in the house and I got a ladder and clean out the drain from the garage used Q-tips where the bleach did not get to and I put 1/2 cup of bleach in the drain. I let it sit for 10 minutes. Then I got the wet dry vac and went outside to where the drain is suppose to drain and I sucked out the drain. I repeated this step again in an hour. I changed all the filters and sprayed lysol in the return air. I turned the unit on again and I went to a motel for the night. Next morning the house was fresh and the garage was dry.


What is the suntan oil for on wimpy boardwalk?

to unclog rowley at the slide in the fun house


The hose leading from the inside to the outside of the house is dripping water is this supposed to happen or does it mean that the drip pan is full and it is releasing excess water?

AC units have a condensation line. This is a necessary option as cooling the air causes condensation, much like a cold glass of water will condensate on the outside of the glass. The condensate line should be draining to a safe place, and draining whenever the unit is running. The unit should also have a secondary condensate line (overflow). this line should be separate from the main condensate line and be draining to a conspicuous place. If this line is draining, then you should check to see if the primary drain line is plugged. Anything from lint and dust to dead rats and mice have been pulled out of condensate drain lines. If you do not know how to get to this, call a professional and use the primary and secondary condensate verbiage to let him know that you are not an ignorant putz that he can take advantage of. That should save you a few dollars on the bill. Hope this helps. Terry


Where is the condensation water drain-off pipe?

A condensate drain pipe is used in conjunction with air conditioning equipment. Usually installed with heat pumps, this drain pipe gives condensation a place to run off.


Can you just use house hold bleach for a bleach wash for hair?

no


What are some products in your home that are bases?

Some common house hold bases are most cleaning products such as bleach, soap, ammonia, and lye found in products that unclog drains. Some more bases are baking soda, tooth paste, egg whites, and human blood