Upflow Horizontal
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 GARRISON UPFLOW HORIZONTAL 108k BTU GAS FURNACE 3 5 TON $599.99 Time Remaining: 1d 18h 35m Buy It Now for only: $599.99 |
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 GMH950703BX Goodman 95 70000 BTU Upflow Horizontal 2 Stage Gas Furnace Heater $840.00 Time Remaining: 10d 20h 11m Buy It Now for only: $840.00 |
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 92 UPFLOW HORIZONTAL SINGLE STAGE GAS FURNACE 2 3 TON $729.99 Time Remaining: 1d 18h 35m Buy It Now for only: $729.99 |
 GARRISON 5 TON UPFLOW HORIZONTAL GAS FURNACE HEATING MULTI SPEED $589.99 Time Remaining: 12d 13h 41m Buy It Now for only: $589.99 |
 UPFLOW HORIZONTAL GAS HEATER FURNACE SYSTEM 58K BTU MULTI SPEED PSC MOTOR NEW $529.99 Time Remaining: 14d 13h 40m Buy It Now for only: $529.99 |
 GOODMAN SINGLE STAGE GAS FURNACE UPFLOW HORIZONTAL 70000 BTU 80 EFFICIENCY $549.99 Time Remaining: 26d 23h 4m Buy It Now for only: $549.99 |
 80 AFUE EFFICIENCY 70000 BTU 1600 CFM UPFLOW HORIZONTAL GAS HEAT FURNACE NEW $539.99 Time Remaining: 3d 2m Buy It Now for only: $539.99 |
 90000 BTU UPFLOW HORIZONTAL NATURAL GAS FURNACE 80 EFFICIENCY 2000 CFM $629.99 Time Remaining: 1d 13h 12m Buy It Now for only: $629.99 |
 Whirlpool 80 AFUE 90000 btu gas furnace Upflow or Horizontal $715.00 Time Remaining: 5d 1h |
 Goodman Uncased Upflow Horizontal Evaporator Coil CAUF3636C6 13+ SEER $323.50 Time Remaining: 11d 10h 24m Buy It Now for only: $323.50 |
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 UPFLOW HORIZONTAL SINGLE STAGE 1200 CFM GAS FURNACE 45000 BTU 80 EFFICIENCY $512.99 Time Remaining: 29d 15h 1m Buy It Now for only: $512.99 |
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 120000 K BTU 80 UPFLOW HORIZONTAL MULTI SPEED GAS FURNACE 2000 CFM NEW $619.99 Time Remaining: 12d 23h 56m Buy It Now for only: $619.99 |
 Aire Flo Lennox Furnace 44K btu 92 Upflow Horizontal Free Shipping $699.99 Time Remaining: 29d 10h 55m Buy It Now for only: $699.99 |
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 GARRISON UPFLOW HORIZONTAL 90k BTU MULTI SPEED NATURAL GAS FURNACE 3 5 TON $599.99 Time Remaining: 16d 1h 3m Buy It Now for only: $599.99 |
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 UPFLOW HORIZONTAL SINGLE STAGE 92 GAS FURNACE 2 4 TON $749.99 Time Remaining: 1d 18h 35m Buy It Now for only: $749.99 |
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 Brand New UpFlow or Horizontal 1 Stage 921 92000 BTU Gas Furnace GKS90904CX $957.00 Time Remaining: 4d 18h 27m Buy It Now for only: $957.00 |
 TWO STAGE HIGH EFFICIENCY 70000 BTU UPFLOW HORIZONTAL NATURAL GAS FURNACE NEW $999.99 Time Remaining: 23d 18h 48m Buy It Now for only: $999.99 |
 GARRISON 95 AFUE INDUCED DRAFT 2 STAGE 76000 BTU GAS FURNACE UPFLOW HORIZONTAL $1,169.99 Time Remaining: 25d 16h 29m Buy It Now for only: $1,169.99 |
 Brand New UpFlow or Horizontal 2 Stage 95 69000 BTU Gas Furnace GMH950704CX $983.00 Time Remaining: 3d 15h 47m Buy It Now for only: $983.00 |
 GARRISON FURNACE 92 UPFLOW HORIZONTAL 110 K BTU GAS 2000 CFM MULTI SPEED MOTOR $999.98 Time Remaining: 26d 23h 29m Buy It Now for only: $999.98 |
 90000 BTU 80 EFFICIENCY 2 STAGE UPFLOW HORIZONTAL MULTI SPEED GAS FURNACE $639.99 Time Remaining: 17d 1h 57m Buy It Now for only: $639.99 |
 UPFLOW HORIZONTAL 92 AFUE 120k GAS FURNACE 4 5 TON $959.99 Time Remaining: 7d 14h 54m Buy It Now for only: $959.99 |
 Luxaire Upflow Horizontal 115000 BTU Furnace GM8S115 $499.99 Time Remaining: 6d 18h 25m |
 95 TWO STAGE UPFLOW HORIZONTAL 2 3 TON GAS FURNACE 60K $1,169.99 Time Remaining: 19d 14h Buy It Now for only: $1,169.99 |
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 80 EFFICIENCY UPFLOW HORIZONTAL 90K BTU 1600 CFM SINGLE STAGE GAS FURNACE $629.99 Time Remaining: 22d 14m Buy It Now for only: $629.99 |
 UPFLOW HORIZONTAL SINGLE STAGE 92 AFUE LOW BOY HEIGHT GAS FURNACE 4 5 TON $929.99 Time Remaining: 12d 20h 52m Buy It Now for only: $929.99 |
 2 STAGE 80 HIGH EFFICIENCY 90000 BTU UPFLOW HORIZONTAL NATURAL GAS FURNACE NEW $999.99 Time Remaining: 27d 14h 7m Buy It Now for only: $999.99 |
 5 TON 92 UPFLOW HORIZONTAL 100k BTU GAS HEATER FURNACE $929.99 Time Remaining: 21d 12h 58m Buy It Now for only: $929.99 |
 GARRISON 2 3 TON UPFLOW HORIZONTAL GAS FURNACE 54000 BTU NEW $559.99 Time Remaining: 8d 15h 32m Buy It Now for only: $559.99 |
 2 STAGE MULTI POSITION GAS FURNACE 95 EFFICIENCY UPFLOW HORIZONTAL 69 K btu $1,099.99 Time Remaining: 13d 12h 58m Buy It Now for only: $1,099.99 |
 GOODMAN 2 5 TON 80 AFUE 115000 BTU 2 STAGE GAS FURNACE UPFLOW HORIZONTAL $1,219.99 Time Remaining: 19d 17h 30m Buy It Now for only: $1,219.99 |
 4 TON 92 UPFLOW HORIZONTAL MULTI SPEED 120k BTU GAS HEATER FURNACE HEAT $959.99 Time Remaining: 19d 12h 23m Buy It Now for only: $959.99 |
 LUXAIRE Upflow Horizontal 115000 BTU Furnace GM8S115C20UH11D $799.99 Time Remaining: 6d 18h 41m Buy It Now for only: $949.99 |
 Brand New UpFlow or Horizontal 2 Stage 95 46000 BTU Gas Furnace GMH950453BX $923.00 Time Remaining: 8d 22h 24m Buy It Now for only: $923.00 |
 3 TON 60 k BTU UPFLOW MULTI SPEED HORIZONTAL GAS HEATER FURNACE HVAC $579.99 Time Remaining: 1d 11h 35m Buy It Now for only: $579.99 |
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 Brand New UpFlow or Horizontal 2 Stage 95 92000 BTU Gas Furnace GMH950904CX $1,061.00 Time Remaining: 3d 15h 53m Buy It Now for only: $1,061.00 |
 UPFLOW MULTI SPEED HORIZONTAL SINGLE STAGE 92 GAS FURNACE 3 5 TON HVAC $839.99 Time Remaining: 7d 13h 46m Buy It Now for only: $839.99 |
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 Brand New UpFlow or Horizontal 2 Stage 95 115000 BTU Gas Furnace GMH951155DX $1,159.00 Time Remaining: 8d 22h 32m Buy It Now for only: $1,159.00 |
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 GOODMAN TWO STAGE UPFLOW HORIZONTAL GAS FURNACE 115000 BTU CONVERTIBLE 80 AFUE $729.99 Time Remaining: 4d 17h 52m Buy It Now for only: $729.99 |
 Nordyne Upflow Horizontal Downflow Gas Furnace KG7SC 038D 23A 38000 BTU $399.99 Time Remaining: 9d 17h 20m Buy It Now for only: $499.99 |
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 Brand New UpFlow or Horizontal 2 Stage 95 92000 BTU Gas Furnace GMH950905CX $1,105.00 Time Remaining: 8d 22h 31m Buy It Now for only: $1,105.00 |
 115000 BTU TWO STAGE CONVERTIBLE GAS FURNACE 80 AFUE UPFLOW HORIZONTAL $725.99 Time Remaining: 20d 12h 35m Buy It Now for only: $725.99 |
 Aire Flo Lennox Furnace 135kbtu 92 Upflow Horizontal Free Shipping 92AF1UH135P2 $1,099.00 Time Remaining: 13d 50m Buy It Now for only: $1,099.00 |
 115000 BTU UPFLOW HORIZONTAL MULTI SPEED NATURAL GAS FURNACE 95 EFFICIENCY $1,179.99 Time Remaining: 13d 8m Buy It Now for only: $1,179.99 |
 Brand New UpFlow or Horizontal 1 Stage 921 115000 BTU Gas Furnace GKS91155DX $1,042.00 Time Remaining: 4d 18h 27m Buy It Now for only: $1,042.00 |
 R22 MULTI POSITION CASED EVAPORATOR COILS 35 TON UPFLOW DOWNFLOW HORIZONTAL $389.99 Time Remaining: 10d 18h 15m Buy It Now for only: $389.99 |
 YORK Upflow Horizontal 80000 BTU Furnace PV8A12N080UH $599.99 Time Remaining: 9d 17h 20m Buy It Now for only: $699.99 |
 GOODMAN 80 AFUE 2 STAGE VARIABLE SPEED 70K BTU GAS FURNACE UPFLOW HORIZONTAL $1,079.99 Time Remaining: 19d 17h 30m Buy It Now for only: $1,079.99 |
 GMH81005CN Goodman 80 100000 BTU Upflow Horizontal 2 Stage Gas Furnace Heater $768.00 Time Remaining: 8d 11h 38m Buy It Now for only: $768.00 |
 GARRISON HORIZONTAL UPFLOW LO BOY GAS FURNACE 90k BTU 2 4 TON 80 $599.99 Time Remaining: 2d 12h 42m Buy It Now for only: $599.99 |
 GOODMAN LONOX EMMISION 80 AFUE 90K BTU 2 STAGE GAS FURNACE UPFLOW HORIZONTAL $1,149.99 Time Remaining: 19d 17h 30m Buy It Now for only: $1,149.99 |
 GMH951155DX Goodman 95 115000 BTU Upflow Horizontal 2 Stage Gas Furnace Heater $1,148.00 Time Remaining: 5d 13h 36m Buy It Now for only: $1,148.00 |
 95 AFUE UPFLOW HORIZONTAL 46 K btu 2 STAGE GAS FURNACE COMFORTNET COMPATIBLE $1,059.99 Time Remaining: 15d 18h 53m Buy It Now for only: $1,059.99 |
 115000 btu 2 5 TON NATURAL GAS FURNACE 95 EFFICIENCY UPFLOW HORIZONTAL $1,449.99 Time Remaining: 5d 16h 54m Buy It Now for only: $1,449.99 |
 HIGH EFFICIENCY 115000 BTU 80 AFUE 2000 CFM UPFLOW HORIZONTAL GAS FURNACE NEW $1,149.99 Time Remaining: 23d 18h 48m Buy It Now for only: $1,149.99 |
 115000 BTU GAS FURNACE 80 EFFICIENCY 2000 CFM MULTI POSITION UPFLOW HORIZONTAL $659.99 Time Remaining: 1d 13h 12m Buy It Now for only: $659.99 |
 YORK 80 80K 3 TON FURNACE UPFLOW HORIZONTAL TWO STAGE VARIABLE SPEED LOW NOX $875.00 Time Remaining: 6d 3h 29m Buy It Now for only: $875.00 |
Upflow Horizontal
Pressure sand filter
Sand filter - Sand filters are used for water purification. There are three main types; rapid (gravity) sand filters upflow sand filters slow sand filter s All three methods are used extensively in the water industry throughout the world. If the pressure in the filter drops then this indicates that the filter is not getting sufficient pool water through the circulation system.
This could be due to blocked skimmers and sumps inside the pool, restricted suction pipes in the balance tank, or the suction pipes from the pool are blocked off or restricted. pressure sand filter consists of a pressure vessel-this could be either vertical or horizontal-fitted with a set of frontal pipe work and valves, graded silica quartz sand supported by layers of graded under bed consisting of pebbles and gravels, a top distributor to distribute the incoming water uniformly throughout the cross section of the filter, and an under drain system to collect filtered water.
Sand dunes are not only made of sand but also of water. You don't have to dig very far to see the moisture in the sand. One of the unique features of sand is that it helps filter water that passes through it. Go out to the sand and have the students dig into the sand and describe what they find. Talk about why they think it is cool and wet. Ask the students where they think the water came from and where they think it goes. Doing Castles in the Sand prior to this activity helps students understand how sand and water work together through a process called capillary action. Raw water flows down wards through the filter bed and as the suspended matter- which has usually been treated by addition of a coagulant like alum- is retained on the sand surface and between the sand grains immediately below the surface. There is steady rise in the loss of head as the filter process continues and the flow reduces once the Pressure sand filter drop across the filter is excessive.
The Pressure sand filter is now taken out of service and cleaning of the filter is effected by flow reversal. To assist in cleaning the bed, the backwash operation is often preceded by air agitation through the under drain system. The process of air scouring agitates the sand with a scrubbing action, which loosens the intercepted particles. The filter is now ready to be put back into service. Picture Low Flow PSF (FRP Vessel) and High flow custom Vessel (MS Vessel) Sand filter - Sand filters are used for water purification. There are three main types; All three methods are used extensively in the water industry throughout the world.
Advantages and Features1. Efficient Turbidity and TSS Removal2. Filter up to 20 – 30 Microns 3. FRP, CS, MSEP, SS Vessel available4. ASME Pressure Vessel is also available5. Standard and effective silica quartz sand media 6. Low Pressure drop across the vessel7. Air scouring available for high flow pressure sand filter vessel8. Automatic Valves are provided as per customer need9. Manual, Semi Automatic and Automatic features are provided
Also the isolating ball valves could be partially turned off or blocked with debris, or even a blocked filter basket in the pump to a blocked pump chamber or impellor inside the pump, or finally a restricted inlet to the multiport fitted to the filter. Further investigation will be needed to find the reasons. If the plantroom is below water level, make sure you can isolate the pool totally including any returns and that the ball valves are installed in the correct direction. If the pump appears to be the problem and you need help with your investigations, please use the Contact Page to book an appointment for a PSP engineer to visit. To obtain more information on the PSP Pool Owners Club, please visit the Members Page. The information on this page will be added to the appropriate section for members future searches.
About the Author
If the Pressure sand filter in the filter drops then this indicates that the filter is not getting sufficient pool water through the circulation system. This could be due to blocked skimmers and sumps inside the pool, restricted suction pipes in the balance tank, or the suction pipes from the pool are blocked off or restricted.