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๐ Keep your boat running smooth and green โ the smart descaler that tells you when to act!
Mainstream Marine Descaler Solution is a 1-quart biodegradable, multi-purpose marine cleaner designed to rapidly dissolve bio-growth, lime scale, rust, and other deposits in boat engines and A/C systems. Featuring a unique color-changing indicator, it signals when to add more solution, ensuring optimal cleaning without guesswork. Safe for all critical components and environmentally friendly, it also includes metal protectants to prevent corrosion and extend equipment life.




| ASIN | B09721SC52 |
| Best Sellers Rank | #63,200 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #120 in Boat Cleaners |
| Brand Name | Mainstream Marine |
| Customer Reviews | 4.3 4.3 out of 5 stars (71) |
| Date First Available | May 27, 2021 |
| Item Package Dimensions L x W x H | 9.5 x 3.4 x 3.2 inches |
| Manufacturer | Mainstream Marine |
| Package Weight | 1.04 kg |
| Size | 1 Quart |
| Style | 1 Quart |
B**T
Clean that boat
Great product for the price. I have purchased several over the years and have never received a leaky unit. This will get the scum and barnacles off your boat. Super easy to use.
M**E
Seems okay?
Too soon to know
W**S
For a sealed system that uese a heat exchanger for cooling the motor.
Canโt really review because this is meant for a sealed system and not for outboards
V**R
Marine descaler
Worked great and color change properties make dilution easy
J**L
Works Great
Used this to flush a clogged heater core. Canโt believe how much debris it cleaned out. My heater core was almost completely clogged but now flows like new.
D**S
cleaned out my boat air conditioning
Circulated through my boat seawater loop with a rotary pump. Loosened up so much "stuff" that the loop plugged more than the pump could do. After connected a garden hose to the system and blew out tones of scale and shells. Never seen as much flow through the system afterward. Did exactly what I wanted.
N**A
Clogged my hoses
I left a thick residue in my heat exchanger and hoses. When I took them apart they were clogged.
D**.
Overpriced and doesn't do much
Overpriced. Does turn yellow and remove some gunk but then again so does regular water. Flushed a motor with it using an electric pump and could not tell a difference after 4 hours. I removed the water jacket before and after to inspect and still had to scrape scale and scum off manually. Will keep using salt away and would not buy again.
Trustpilot
2 weeks ago
4 days ago