DS-50 Sludge Dehydrator – 5 Bag System for Granite, Marble & Stone Sludge

The Filter Project DS-50 Sludge Dehydrator is a heavy-duty 5-bag filtration system designed to efficiently remove sludge and slurry from granite, marble, quartz, quartzite, engineered stone, concrete, and other stone fabrication processes. Built entirely from AISI 304 stainless steel, this system delivers long-term durability, corrosion resistance, and dependable performance in demanding shop environments.

By automatically separating water from sludge, the DS-50 dramatically reduces pit cleanout labor, minimizes downtime, and improves overall water recycling efficiency.

How the DS-50 Works

Sludge and wastewater collected in pit tanks are pumped via the included submersible pump into the upper holding tank of the dehydrator. From there, material gravity-feeds into the filtration bags. Water drains through the bags while solids remain inside, allowing the sludge to dehydrate and harden for easy disposal.

5-Valve Bag System

• Five independent filtration bags
• Individual shut-off valves for each bag
• Allows one bag to dry while others remain operational
• Once hardened, bags can be easily removed and disposed

Why Install a Sludge Dehydrator?

Manually cleaning sludge pits is labor-intensive, time-consuming, and costly. Production often stops while employees shovel out thick mud and slurry. The DS-50 automates sludge removal from the first tank, drastically reducing or eliminating downtime and preventing sludge buildup in secondary tanks.

Shops using multi-tank gravity systems will notice significantly cleaner water in secondary and tertiary tanks, improving recycling performance and extending pump and equipment life.

Construction & Quality

• Fully constructed in AISI 304 stainless steel
• Premium Italian pumps and valves
• Industrial-grade electrical components
• Manufactured in Italy

Technical Specifications

• Model: DS-50
• Top Tank Capacity: 95–99 gallons per day (450 liters)
• Length: 103" (2600 mm)
• Width: 20" (500 mm)
• Height: 79" (2000 mm)
• Weight: 308 lbs (140 kg)
• Pump Motor: 2 HP (0.75 kW)
• Power Requirement: 220V Three Phase

Designed For

Granite sludge, Marble sludge, Quartz and engineered stone slurry, Quartzite sludge, Cultured marble waste, Concrete and cement slurry.

About Filter Project

Filter Project is a family-owned Italian manufacturer specializing exclusively in sludge dehydration, dust collection, and water filtration systems for the stone industry. Their focus on engineering quality, durability, and long-term reliability makes the DS-50 one of the most dependable sludge dehydration systems available.

Key Benefits

• Reduces or eliminates pit cleanout labor
• Minimizes production downtime
• Improves water recycling efficiency
• Heavy-duty stainless steel construction
• Professional-grade, industrial solution