DIY: RO Filter maintenance

  • Thread starter Thread starter ghpk
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Another Tool/Gadget to finger my D.I.Y. Itch,

Will be Using it to monitor RO Water and would skip the service contracts, cause spares are easily available now a days
and for those who know how it works, can easily save a couple of thousand a year.
Basic operation is, You can check TDS level twice a month, The least the reading is, purer the water is.
my current reading is 21 after 1 year of usage. I am not spending 4.5k on contract this time.
New Filters and membrane installed would give readings, near 0(Zero) while normal home usage of 1 yr. should not be more
than 15-25. and if you change the sediment filter in 6 months, your membrane would last twice its normal life of 1 yr as suggested by companies, but all that counts is the TDS Count, So watch and act.
new filter set would be around Rs.900 ( 3 filters)
One Decent Filter membrane would be Rs.1200-1400
and companies charge 4K + for annual AMC so what they would cover extra is PUMP, and that's only Rs.1000 tops, so all in all even in worst case scenario (Blown Pump) you can save Rs.1000 and if pump doesn't needs to be replaced you save Rs.2000+ a year.
other parts are considered as consumables and would be charged by AMC providers so its out of equation for D.I.Y. cost.

Last pic from phone cam before it went down for 2 days :-)
Bought Pocket Digital TDS Meter from this seller delivered a day earlier than ebay estimated time.
Paid Rs.550/- after ebay discount coupon.
 
my new whirlpool ro has dow filmtech housing unsealed membrane , whirlpool site shows sealed(not sure) membrane price for 2750 , however dow filmtech 75gpd is available for 1300 rs lots of places

i do not know how but technician said that we charge 4500 for booster pump , but same AQnQ pumps are available anywhere between 1400-2500 on ebay and some other sites

so whirlpool parts are also easily available elsewhere unofficially ........so it worked out just fine i suppose
 
Looks like its a Filter to be used Before or AFTER your existing purifier.
 
You can buy whirlpool mineral cartridge for 1300 online from their website or contact their local service centre to get offline prices.

Or you can buy on eBay the non branded mineral cartridge........ However it's a matter of important minerals and I will suggest being with some brand as we don't know what unbranded cartridge contains and mixes in the water
 
I opened up my ZeroB and took pictures, I think their service guys have hooked the filters wrongly, i.e. the water in and water out is not hooked up properly. If you see the picture, the label on the first 2 filters from the left is upside down, but water ins from top on the 1st filter, goes out to the pump, then fed from bottom to the second filter, exits from top and feeds the membrane, exits the membrane and enters the 3rd filter from bottom, top of this filter exits to the tank. There is no water flow marks in these filters, very unlike to the ones available on ebay.

Also I was amazed to find that the back cabinet had only one screw out of 8. Shows how unprofessional service quality is rendered.

I'm now thinking, shall I buy the filter kit from ebay, or go for Aquafresh 10 stage RO system around 6.5k (ebay) which is locally assembled and self service of the same will be comparatively easier.

 
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