Where can I get resin and what do I buy?

Lots of places sell it in raw form which is by far the cheapest way to go as "the stuff ain't cheap"! Do an internet search for DI resin and you'll find several vendors. Some sell a whole cubic foot and it's $200-300 or so and will refill this kit numerous times, probably more than you need so look for a deal on like 1/4 or 1/2 cubic foot which should hold you for a couple years. You'll need the "mixed bed resin".

filtered pressure very low, removed regulator and better now, is that ok? plus I believe inlet fitting bad cause cannot stop the leak?

The Spot Free Car Rinse works because the mixed bed resin removes the Total Dissolved Solids (TDS) in the water. TDS is things like calcium, that leaves spots when the water dries. For the resin to remove the TDS, the water must flow slow through the resin. If you remove the Flow Regulator, the resin will not absorb all of the TDS and you will still have spots on your vehicle. You need to keep the Flow Regulator installed. Regarding the leak, do you mean where your garden hose attaches to the unit? If so, we suggest trying some Teflon tape to stop any water from leaking.

Does the water flow through the cartridges simultaneously or in series?

The water flows through the cartridges in series to allow more time for the water to interact with the mixed bed resin.

Can this be used as a hard water filter for my dishwasher?

No. Use an inline water filter for a refrigerator ice maker for that purpose.

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Aquatic Life DI Spot-Free Car Rinse System

Product ID: 88395563

Details

Brand
Aquatic Life
Capacity
140 ml
Included Components
filter
Installation Type
Wall-Mounted
Material
Resin
Package Information
Cartridge

🔄2,000 TDS removal per cartridge

🚿0.75 GPM max flow rate

🧰All-in-one easy assembly kit

S$264

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Description

✨ Drive spotless, rinse effortless 🚗

VERSATILE VEHICLE CARE - Perfect for cars, trucks, motorcycles, RVs, and even home windows—one system for all your cleaning needs.
EFFORTLESS INSTALLATION - Complete kit with mounting bracket, adapters, and wrench for quick setup—no plumber needed.
SPOTLESS AIR DRY FINISH - Eliminate towel drying—just rinse and walk away with a flawless, mineral-spot-free shine.
LONG LASTING RESIN POWER - Each cartridge filters up to 2,000 TDS, with color-changing resin to track usage at a glance.
ECO SMART COST EFFICIENT - Rechargeable resin cartridges reduce waste and save money over disposable filters—sustainability meets savings.

The Aquatic Life DI Spot-Free Car Rinse System is a wall-mounted, deionized water filtration kit designed to remove up to 2,000 TDS per cartridge, delivering a mineral-spot-free rinse that lets vehicles air dry without streaks. Featuring an all-in-one assembly kit with color-changing resin indicators, it supports a maximum flow rate of 0.75 GPM and is suitable for cars, trucks, motorcycles, RVs, and even home windows. Durable and refillable, it offers a cost-effective, eco-friendly solution for professional-grade vehicle care.

Specifications

ASIN	B07H8MQTMD
Best Sellers Rank	#86,238 in Automotive ( See Top 100 in Automotive ) #5,022 in Car Care
Brand Name	Aquatic Life
Capacity	140 ml
Container Type	Cartridge
Customer Reviews	4.0 4.0 out of 5 stars (1,284)
Included Components	filter
Installation Type	Wall-Mounted
Item Dimensions L x W x H	11"L x 6"W x 17"H
Item Highlight	Deionized-water rinse helps prevent mineral spots so cars, RVs, and motorcycles can air-dry to a clean finish
Manufacturer	Aquatic Life
Material Type	Resin
Maximum Flow Rate	0.75 gpm
Model Name	540565
Model Number	540565
Number of Items	2
Other Special Features of the Product	Color Changing
Part Number	540565
Power Source	Adapter
Purification Method	Deionization
Supported Water TDS Level Maximum (PPM)	2000
UPC	810957015657
Unit Count	1 Count
Upper Temperature Rating	77 °F

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S$264

Duties & taxes included

In stock

Sold byAmazon SINGAPOREDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to SINGAPORE.

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Fast, free shipping, member pricing & priority support.

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TrustScore 4.5 | 7,300+ reviews

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