CaFood grade
Calcium
Calcium ChlorideRestores calcium hardness and a fuller, natural taste, and makes RO water less corrosive to pipes and tanks.
Details & certificate
9 yearsRunning water plants in Lahore
Same-day in Lahore2–3 days anywhere in Pakistan
Certificates includedCOA and spec sheets on request
No minimum orderFrom one 1 kg pouch
Our minerals
Three minerals, one simple price
Reverse osmosis strips almost everything out of water. These three put back what good drinking water needs. Order online, or build a mixed box.
MgFood grade
Magnesium
Magnesium SulphateAdds magnesium for a smooth, rounded mouthfeel. Dosed alongside calcium to balance the finished water.
Details & certificateNaFood grade
Sodium
Sodium BicarbonateRaises alkalinity and lifts the low pH of RO water into the normal drinking range, so it doesn't taste sour.
Details & spec sheet
Packs & prices
Packed in 1 kg pouches, boxed in 1, 2 or 5 kg
Every mineral comes in sealed, moisture-proof 1 kg pouches. Order single pouches for a small plant or a trial, or save with boxes of 2 and 5 kg for regular supply. Need more than one mineral? Fill a mixed box with any combination.
| Pack | Contains | Price |
|---|---|---|
| 1 kg pouch | 1 × 1 kg pouch | Rs 800 |
| 2 kg box | 2 × 1 kg pouches Save Rs 50 | Rs 1,550 |
| 5 kg box | 5 × 1 kg pouches Save Rs 200 | Rs 3,800 |
Same price for calcium, magnesium and sodium. Prices exclude standard delivery charges.
Shop minerals
Why Mr. RO
“I built the mineral supplier I wished I'd had when I started my own water plant.”
Ubaid Kayani, founder, Mr. RO
We have run RO water plants in Lahore since 2017. Buying minerals was always the hard part: quality changed from bag to bag, deliveries came late, and the price depended on who you asked. So we started supplying them ourselves, the way a plant owner wants to buy them.
- Consistent quality. Food-grade material, backed by certificates you can check.
- Reliable delivery. Same day in Lahore, 2–3 days to the rest of Pakistan.
- Clear pricing. Rs 800 per kg, written on this website for everyone.
- Straight answers. Practical dosing advice from people who run a plant.
Getting started
Start with a trial, then set a schedule
New to us? Try the minerals in your own plant before you commit to regular orders.
Tell us about your plant
Message us your plant capacity and, if you have one, your water report.
Get our suggestion
We suggest which minerals you need and a starting mix for your water.
Place a trial order
Order a few pouches, check taste and TDS, and adjust the dose.
Set a regular schedule
Agree a delivery routine so you never run short.
Quality you can check
Certificates for every mineral
Calcium chloride and magnesium sulphate come with the manufacturer's Certificate of Analysis showing assay, impurities and lead and arsenic results. Sodium bicarbonate comes with its product specification sheet. Ask for them with any order, or view them online.
- Calcium chloride dihydrate: assay 98.0%, food additive E509
- Magnesium sulphate heptahydrate: assay 99.0%, food additive E518
- Sodium bicarbonate: assay 99.0–100.5%, food grade
Guides
Learn the water chemistry behind your plant
RO water remineralisation: a simple guide
Which minerals to put back after RO, how much each gram adds, and how to check your water after dosing.
Read the remineralisation guide
What TDS level is good for drinking water?
A simple TDS chart for Pakistan, the official limits, and why very low TDS isn't better.
Read the TDS chart
What does TDS in water mean?
What TDS meters really measure, what WHO says about taste, and how to use TDS readings to check your RO membrane.
Read the TDS guide
Sodium, calcium & magnesium in water treatment
Where each mineral shows up in your plant, from hardness and softeners to remineralisation after RO.
Read the minerals guide
Also from Mr. RO
19-litre drinking water delivered in Lahore
Mr. RO Water delivers RO-purified 19-litre bottles from our own plant to homes, offices and events across Lahore.
FAQ
Common questions
How much do your water minerals cost?
Calcium, magnesium and sodium minerals are all Rs 800 per kg, with savings on boxes: Rs 800 for a 1 kg pouch, Rs 1,550 for a 2 kg box and Rs 3,800 for a 5 kg box. Standard delivery charges are extra and confirmed when we call you.
Is there a minimum order?
No. You can order a single 1 kg pouch for a small plant or a trial, or as many boxes as your plant needs.
How fast do you deliver?
Confirmed orders are delivered the same day within Lahore. Orders to other cities in Pakistan usually arrive in 2 to 3 days.
How do I order and pay?
Add packs to your cart on this website and place your order, or send it on WhatsApp. We call you to confirm. Cash on delivery is available in Lahore; orders to other cities are paid by bank transfer before dispatch.
Which minerals does my RO plant need?
Most RO plants add calcium and magnesium after the membrane to bring back taste and hardness, and sodium bicarbonate to raise alkalinity and pH. The right mix depends on your water, so send us your plant's water report on WhatsApp and we will suggest one.
Do you provide quality certificates?
Yes. Calcium chloride and magnesium sulphate come with the manufacturer's Certificate of Analysis, and sodium bicarbonate with its product specification sheet. You can view all three on the Water Minerals page.
Ready to order, or want to ask first?
Order online in a few clicks, or send us your plant size on WhatsApp and we'll help you choose.