DIY RO filter

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DIY RO filter

Postby Sammy989 » Mon Jun 17, 2013 4:41 pm

Guys,... :-s Today my mom banned me from using the RO any more :((. If I touch it again she will kick my Ass :p ...I was using our aquaguard for my 70 gallon marine cycling....maybe a little too much :ymblushing: . What am I to do now...I don't know if I can use the mineral water from our local factory, the guy says he adds sodium bicarbonate in the water for PH buffering. A branded RO unit costs a BOMB, any alternatives...
Last edited by Sammy989 on Fri Jun 21, 2013 1:01 pm, edited 3 times in total.
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Re: RO Dillema :''(

Postby Rohan » Mon Jun 17, 2013 4:53 pm

Mithun da demonstrated us about a DIY RO unit that will cost around 3k max.

Batty da took videos i think of that workshop.
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Re: RO Dillema :''(

Postby mithun » Mon Jun 17, 2013 4:56 pm

yes u can make a DIY RO unit with 3-4k budget. Let me know if you want to make one!
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Re: RO Dillema :''(

Postby Sammy989 » Mon Jun 17, 2013 4:58 pm

YES!!!! I want to definately...
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Re: RO Dillema :''(

Postby mithun » Mon Jun 17, 2013 5:01 pm

Ok.. then locate a RO spare parts supplier/shop around ur locality.. once u get it let me know I will give u the parts list u will need.
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Re: RO Dillema :''(

Postby Sammy989 » Mon Jun 17, 2013 5:03 pm

:D OK....YES SIR!!
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Re: RO Dillema :''(

Postby zico_aqua » Mon Jun 17, 2013 7:35 pm

let me know too..I have seller right next door..:P
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Re: RO Dillema :''(

Postby mithun » Mon Jun 17, 2013 8:02 pm

ok here goes the list

1. 5 micron sediment filter cartridge with its cannister
2. 5 micron carbon block filter cartridge with its cannister
3. Precarbon cartridge with cannister.
4. RO membrane and its cannister (75 gpd)
5. Flow restrictor (450 or 600 based on purity u need. higher the number more purity but more rejection )
6. electric valve (12V or 24V)
7. SMPS 12V or 24V depending on valve
8. Pressure pump in case u dont have enough water pressure. (optional)
9. PU pipes for RO (white and blue).
10. L cannister fittings for pipes.
11. other fittings to make RO system integrate with your home plumbing and to integrate RO water with a sink(or u may keep the output as open ended pipe)

excluding the pump it should be well within 4k.

Pump is required if u live at the top floor and water pressure is quite low to make water pass through the cartridges. price around Rs 2.5k

you can also add a TDS monitor to show the TDS of the water the RO system is producing (around Rs.2k)

if you want to create Auto Top Off type setup u can also use a magnetic float switch for the same.
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Re: RO Dillema :''(

Postby Sammy989 » Tue Jun 18, 2013 2:25 pm

mithun wrote:ok here goes the list

1. 5 micron sediment filter cartridge with its cannister
2. 5 micron carbon block filter cartridge with its cannister
3. Precarbon cartridge with cannister.
4. RO membrane and its cannister (75 gpd)
5. Flow restrictor (450 or 600 based on purity u need. higher the number more purity but more rejection )
6. electric valve (12V or 24V)
7. SMPS 12V or 24V depending on valve
8. Pressure pump in case u dont have enough water pressure. (optional)
9. PU pipes for RO (white and blue).
10. L cannister fittings for pipes.
11. other fittings to make RO system integrate with your home plumbing and to integrate RO water with a sink(or u may keep the output as open ended pipe)

excluding the pump it should be well within 4k.

Pump is required if u live at the top floor and water pressure is quite low to make water pass through the cartridges. price around Rs 2.5k

you can also add a TDS monitor to show the TDS of the water the RO system is producing (around Rs.2k)

if you want to create Auto Top Off type setup u can also use a magnetic float switch for the same.

Dada, today I went to the nearest RO supplier. This is the price list given for the required parts...

1. 5 micron sediment filter cartridge with its cannister- 220
2. 5 micron carbon block filter cartridge with its cannister- 220
3. Precarbon cartridge with cannister.- 260
4. RO membrane and its cannister (75 gpd)- 2000 for dow flimtech membrane (only one available)... :(
5. Flow restrictor (450 or 600 based on purity u need. higher the number more purity but more rejection )-125
6. electric valve (12V or 24V)-175
7. SMPS 12V or 24V depending on valve-675
8. Pressure pump in case u dont have enough water pressure. (optional)
9. PU pipes for RO (white and blue).-270
10. L cannister fittings for pipes.-9 per piece
11. other fittings to make RO system integrate with your home plumbing and to integrate RO water with a sink(or u may keep the output as open ended pipe)-200
I can get a DOW filmtech 75 gpd membrane online at 1300. And even cheaper ones are available.... Dada, my water tank is around 35 feet hight from the tap nearest to the tank, would a pressure pump be required...
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Re: RO Dillema :''(

Postby mithun » Tue Jun 18, 2013 3:43 pm

yes Dow filmtech is around 1200-1300.. with cannister it will cost u around 1600. 2000 is a bit higher. Rest prices are perfect! total it will cost around 4K. SMPS is also a bit costly in your quote.

U can try without a pressure pump.. the flow will be lesser but it will work.. If it doesn't get a pressure pump and pressure gauge..

Glad how quickly u got the quotes! Thats some enthusiasm there! :-bd
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