his is the first episode of Busted or Trusted — a series where we buy the hyped products in the industry, put them under controlled testing, and let the numbers talk.
Episode 1: Chemical injectors. Which ones actually pull the strongest, and which ones are just marketing?
Injectors tested (all 5–8 GPM with #4 orifice):
- 100950 Brass (ceramic ball)
- 100339LG General Pump Stainless
- Suds Sucker Stainless
- 100791 Double Gulp
- 100950 Brass with check valve adapter
How we tested:
- Same machine
- 50 ft of 3/8" hose
- 48" drop tube
- 1-gallon container filled to the absolute top
- 30-second timed draws
- Weighed the remaining water on a scale
- Ran both half throttle and full throttle
- Also timed 5-gallon bucket fills to measure flow restriction
Key results:
Strongest chemical draw: General Pump Stainless 100339LG won both half and full throttle. It left the least liquid in the container and produced the highest theoretical chemical percentage.
Best value: The standard brass 100950 performed surprisingly well for the price. It wasn’t far off the more expensive options and clearly won the price-to-performance category.
Double Gulp: Solid second place in draw rate when both tubes were in the same liquid, but still noticeably behind the GP stainless.
Flow restriction: The Suds Sucker stainless had the lowest restriction of the group. Most of the others clustered in a pretty tight range.
Interesting note: On the better-performing injectors, full throttle produced a stronger chemical concentration than half throttle.
We put the full numbers into charts covering draw rate, theoretical bleach percentage, 5-gallon fill time, restriction percentage, and price vs performance.
Full video with all the testing and data: https://youtu.be/8WmGttTx4mE
Which injector are you currently running? Drop it in the comments — we’re building a real-world list.