Inside the Lo-Flo NDS End Kit, and Why the Check Valve Matters
This is the closing section of a three quarter inch Nutrient Delivery System. Twelve line items make it up, and two of them do the real work. The first is the mixing chamber, where concentrate and water blend into one solution. The second is a 1/2 in check valve, and that part is what sets this kit apart from the larger one. Concentrate arrives from the doser through a 1/4 in barb fitting threaded into 1/2 in NPT. The check valve sits behind it, so solution under pressure cannot push back up the injection line. Around those two sit five 3/4 in nipples, a 3/4 in tee, and a reducer nipple stepping 3/4 in down to 1/2 in. A separate pressure gauge tee carries the gauge itself, so working pressure stays visible. A Banjo ball valve isolates the section without draining the main. A union lets it be broken apart for service instead of cut out. A hose adapter and a roll of thread tape finish the kit. Nothing in it is electronic, which is the whole difference from a Monitor Kit.
What a Dosing System Plumbing Kit Has to Do at the End of a Line
There are three jobs at this position and this kit covers all of them. Blend the concentrate, protect the injection line from backflow, and show the working pressure. Anything beyond that belongs to the Monitor Kit, which adds a meter for pH, conductivity and temperature. Choose between the two on how readings actually get taken. A sample port and a handheld meter make this the simpler and less costly end of the line. Size matters more here than people expect. This is the Lo-Flo build, and Dilution Solutions rate that series from 0.05 to 14 GPM at 4.3 to 85 PSI. The Hi-Flo version runs one and a half inch line to 40 GPM at up to 116 PSI. It also uses a cross instead of a tee and carries no check valve, so the parts lists really do differ. This kit ships at 6 lbs against 9 lbs for the larger one. One honest note comes from the supplier. Fittings may not look identical to the photograph, because equivalent parts get substituted, and the function stays the same.
Key Features
- Mixing chamber included: Where concentrate and water blend into a single solution.
- 1/2 in check valve: Stops pressurised solution pushing back up the injection line.
- 1/4 in barb fitting: Threaded into 1/2 in NPT to take the line from the doser.
- Pressure gauge on its own tee: Working pressure stays readable without a separate meter.
- Banjo ball valve: Isolates this section without draining the whole main line.
- Union in the assembly: The section comes apart for service rather than being cut out.
- Lo-Flo 3/4 in sizing: Rated 0.05 to 14 GPM at 4.3 to 85 PSI for the series.
- Nothing electronic: Take the Monitor Kit instead if pH and EC readings are wanted.
Technical Specifications
| Specification | Value |
|---|---|
| SKU | HYKEND |
| Brand | Dilution Solutions / Dosatron |
| Product | Nutrient Delivery System End Kit, Lo-Flo, no monitor |
| Line size | 3/4 in |
| Series rating | Lo-Flo, 0.05 to 14 GPM and 4.3 to 85 PSI |
| Mixing chamber | Included, 1 off |
| Nipples | 5 x 3/4 in nipples, plus 1 reducer nipple 3/4 in to 1/2 in |
| Tees | 1 x 3/4 in tee, plus 1 pressure gauge tee |
| Gauge | 1 x pressure gauge |
| Check valve | 1 x 1/2 in |
| Injection fitting | 1 x 1/4 in barb fitting, 1/2 in NPT thread |
| Valve | 1 x Banjo ball valve |
| Other fittings | 1 union, 1 hose adapter, 1 roll of thread tape |
| Monitor | Not included; the Monitor Kit is the alternative at this position |
| Shipping weight | 6 lbs |
| Hi-Flo equivalent | 1-1/2 in line to 40 GPM, a separate part number, 9 lbs |
| Kits in the system | Starter Kit, Mixing Chamber Kit, Monitor Kit or End Kit, Water Hammer Arrestor Kit |
| Note from the supplier | Parts may differ in appearance from the photograph; fit and function are the same |
| Barcode | None on file and none confirmed, so it was left empty |