Dock-Mate DM-1004 Water Softener ***NEW MODEL IS HERE***

Dock-Mate DM-1004 Water Softener

The Dock-Mate DM-1004 is the mid-size option for owners and crew seeking more treated-water capacity than the DM-1001. Its listed 4,800-gallon capacity applies at an incoming hardness of 5 grains per gallon. The unit can be used portably or installed aboard, and Yacht-Mate positions it for vessels 100 ft and over. Match it to freshwater use and dock-water hardness as well as vessel length.

Hardness treatment for routine freshwater use

The fine-mesh softening resin treats hardness that contributes to mineral deposits on fittings and finishes. This helps reduce hardness-related spotting and scale in freshwater equipment. Recharge the resin when required to keep it working effectively.

Choosing capacity and installation space

The DM-1004 measures 10 inches in diameter and 29.5 inches high, with a listed flow range of 8 to 12 gpm. For comparison, the DM-1001 is 9 inches in diameter and 23 inches high, with a listed 3,200-gallon capacity at the same 5-grain hardness. Choose between them using available space, water demand and the hardness of the supply.

What is included

• 2 ft recharge hose
• 4 ft inlet hose
• Hardness test kit
• Recharge kit
• Recharge and capacity charts

FillFast prefilters are available as an order option. Check that the selected version includes them if required.

Controls and recharge planning

The listed non-electric control valve manages service, brine and slow-rinse flow. Digital or manual metering is described for the range; confirm the meter supplied with your configuration. Use the hardness kit and the chart supplied with the unit to plan recharges. Match the recharge instructions to your fitted valve and kit.

The product listing states a three-year valve warranty and a two-year digital-meter warranty where a digital meter is supplied. Confirm the terms for the equipment ordered.

Browse the water softener range to compare other freshwater treatment configurations.

Frequently Asked Questions

Will the DM-1004 give me more water between recharges than the DM-1001?

At the listed 5-grain-per-gallon hardness, DM-1004 is rated for 4,800 gallons and DM-1001 for 3,200 gallons. Compare both ratings at the same incoming hardness; harder dock water reduces the amount available between recharges.

Can the DM-1004 stay installed aboard instead of being carried onto the dock?

Yes. The listing supports portable or installed use. Allow for its 10-inch diameter and 29.5-inch height, plus connections and service access. Mounting and plumbing need to suit the vessel; the portable hose kit does not specify every fitting required for a fixed installation.

Does choosing the DM-1004 automatically include FillFast prefilters?

No. It is offered with or without FillFast prefilters. Select the required option when ordering. The listed base kit includes a 2 ft recharge hose, 4 ft inlet hose, hardness test kit and recharge kit.

What salt quantity is specified for the DM-1004 brine-tank recharge system?

The published brine-tank instructions list 6 to 8 lb of salt for DM-1004, DM-1001 and DM-1002. This applies to the brine-tank arrangement described in that guide. Match the instructions to the recharge kit supplied with your unit before using that dose.

Can I use the full 8 to 12 gpm rating when sizing a DM-1004 installation?

That is the product’s listed flow range. Confirm the proposed operating point with Yacht-Mate using your supply pressure, hose or pipe sizes and any prefilters; the listing does not give a pressure-drop curve for the complete installation.