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Dometic GROUP SeaLand VacuFlush HTS-VG User Manual

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This manual must be read and under-
stood before installation, adjustment,
service, or maintenance is performed.
Modication of this product can
result in property damage.
WARNING
!
VacuFlush
®
HTS-VG Models (with vacuum generators)
Standard HTS-T Models (with discharge pump only)
Basic HTS Models (with ttings only)
SeaLand
®
HOLDING TANK SYSTEM
OWNER’S MANUAL
Dometic Corporation, Sanitation Division
13128 State Rt 226, PO Box 38
Big Prairie, OH 44611
SeaLand Product Customer Service: 1-800-321-9886
www.Dometic.com
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Dometic GROUP SeaLand VacuFlush HTS-VG Specifications

General IconGeneral
Flush TechnologyVacuFlush
Bowl MaterialVitreous china
BrandDometic
ModelVacuFlush HTS-VG
Flush SystemVacuum
Voltage12V DC

Summary

Warning and Safety Precautions

Read Manual Before Operation

Manual must be read and understood before installation, adjustment, service, or maintenance.

SeaLand HTS Benefits and Compliance

Superior Durability and Material

Systems molded from linear low density polyethylene (LLDP) resin for corrosion resistance.

Leak-Proof Design Features

Hose connections on top of tank and unique diptube design minimize residual contents.

ISO and USCG Compliance

Models comply with ISO 8099:2000(E) standard and US Coast Guard requirements.

Odor-Free Design and Implosion Protection

Extra-heavy wall thickness and TankSaver™ valve prevent odor permeation and tank damage.

Multiple Tank Outlets

Most models have two discharge outlets for deck or pump connection.

Holding Tank System Installation

Choosing a Location for the HTS

Position low in hull, avoid heat sources, consider filled weight and trim.

Preparing a Mounting Surface

Ensure surface supports entire tank area, avoid puncturing, do not block bilge.

Avoiding Hose Odor Permeation

Eliminate unnecessary runs, use rigid pipe where possible, simplify hose layout.

HTS Vacuum Generator Connections

Diagram showing connections for VacuFlush models.

Basic HTS Connections

Diagram showing connections for basic HTS models.

Plumbing Connections and Hose Layouts

Flexible Hose Connection Tips

Use liquid dish soap, avoid lubricants, do not restrict pull, support hose properly.

Hose Bend and Support Guidelines

Avoid sharp bends, use trough support, support hose every 12 inches.

Clamp Connections for Flexible Hose

Secure each hose connection with two hose clamps, position screws 180° apart.

Solvent Bonding for Rigid Pipe

Use PVC cleaner and cement, twist and hold, allow adequate cure time.

Installation Details and Maintenance

Vent Line and Filter Installation

Ensure free flow, use non-reinforced hose, avoid heat, do not install below tank top.

Service Access Requirements

Install for easy access to inspection port, pump, and filter; use maintenance valve.

Cleaning the Holding Tank

Rinse tank after discharge, use specified cleaner, avoid harsh chemicals.

Winterizing the System

Pump out, flush, use only propylene glycol antifreeze without alcohol.

SeaLand HTS System Components

TankWatch Level Monitor System

Monitors tank levels (Empty, Low, Mid, Full) with micro-float switches.

VacuFlush Vacuum Generators

Combines vacuum tank and pump for efficient flushing in HTS-VG models.

TankSaver Vacuum Relief Valve

Prevents tank implosion from high dockside vacuum by opening automatically.

SaniGard Holding Tank Vent Filter

Filters odors from tank vent, keeping air clean and pleasant.

SaniPump Overboard Discharge Pump

Dry-run capable pump for overboard discharge, check regulations.

OdorSafe Plus Sanitation Hose

Provides superior odor barrier resistance for all 1 1/2-inch connections.

Diptube Discharge Design

Removes waste from top of tank, reducing stagnant sewage and odor.

Plumbing and Electrical Specifications

Hose Ball Valve

Non-corrosive PVC ball valve with Teflon seals.

Hose Fittings and Adapters

Various fittings like menders, bends, adapters, tees, and wyes for 1 1/2" hose.

Pipe Fittings

Fittings for 1 1/2" PVC pipe, including couplings, elbows, and adapters.

Plumbing Pipe and Hose Options

Includes rigid PVC pipe and OdorSafe Plus sanitation hose, vent hose.

Ordering Parts

Information Needed for Ordering

Provide HTS Model Number, Serial Number, and Part Number for assistance.

Customer Service and Support

Customer Service Contact Information

Contact for service, maintenance, and authorized service centers.

Manufacturer's One-Year Warranty

Warranty Coverage and Exclusions

Details warranty coverage, exclusions, and implied warranties for the product.