Water Treatment Equipment Manufacturer

GENERAL SPECIFICATION

LAKESIDE WATER TREATMENT LWTF SERIES WATER SOFTENERS

Lakeside Water LWTF Series water softeners shall be designed specifically for hardness (calcium and magnesium) and iron removal. The LWTF Series softeners feature corrosion resistant construction and shall be ideally suited for commercial and industrial applications. Standard pre-engineered systems shall be available with exchange capacities from 60,000 to 900,000 grains. The following standard equipment is included:

SOFTENER TANKS
The softener tanks shall be seamless fiberglass for maximum corrosion resistance. The 16 inch tanks and smaller shall be poly glass. The 18 thru 30 inch tanks shall be 100% composite fiberglass construction. The composite and poly glass tanks shall be manufactured with an inner shell constructed of high density polyethylene (HDPE) which is wound with a continuous fiberglass roving for strength. All tanks are rated for a maximum pressure of 150 psig and maximum temperature of 120° F and are factory tested prior to shipping. All tanks shall meet the requirements of NSF, UL and WQA.

RESIN

The resin shall be premium quality, strong acid, sodium form cation exchange resin. The resin will be bead-form, 8% cross linked, polystyrene sulfonated cation exchange resin. The capacity of the resin will be a minimum of 30,000 grains/cu. ft. when regenerated with 15 lbs. of salt and operated at standard conditions. The resin shall not add color to the water and must comply with FDA regulations paragraph 173:25 and be approved by the U.S. Department of Agriculture.

CONTROL VALVE

A fully automatic multiport control valve shall be provided to cycle the softener through the service, backwash, down flow brine draw/slow rinse, second backwash, rapid rinse and brine refill operation modes. The valve shall be constructed with cast brass or Noryl valve body and Teflon coated piston. The valve will be piston operated that is motor driven for positive operation. The piston controls the regeneration cycle and the service valve cycle. The control system shall consist of a solid state microprocessor with front panel display and fully adjustable cycle times with 6-cycle control. A calendar day override feature is provided to allow the system to be regenerated at any time of the day or night, on any day(s) of the week. The system shall include an automatic flow control to regulate the backwash and rinse flow rates regardless of feed water pressure fluctuation between 25 and 120 psig.

CONTROL AND REGENERATION
INITIATION OPTIONS

Time Clock (single) Option

The 110 volt electronic cycle controller shall feature a calendar day override function in the microprocessor that is adjustable to initiate regeneration at any hour of the day and any day of the week.

Electronic cycle controller (Twin Alt.) Option

The twin water softener shall be equipped with a single meter in the outlet piping. When the user specified volume is reached, the meter will send a Hall Effect signal to the NEMA 4x fiberglass panel that will direct the softener in the stand-by position into a pre-rinse cycle to eliminate the possibility of hardness carryover due to extended off line time. After completion of this cycle, the controller shall direct the softener into the service mode. This system shall produce a continuous supply of soft water. Regeneration from this controller shall be initiated by pushbutton, time clock, flow meter or from a remote location.

Progressive Demand Parallel Option

A sophisticated programmable microprocessor shall be provided to operate single, twin, triple or quadruple systems. Multiple tank application, progressive demand and diagnostic capabilities shall be the premiere features. The progressive demand application shall allow one to four softeners to be online in proportion to the service demand. One softener shall always be in service, and the other units automatically come online as the flow increases. As the flow rate decreases, softeners shall be removed from service based on the pre-programmed GPM settings. This system shall provide uninterrupted flow of soft water 24/7 during variable and peak flows of the facility. (One auxiliary output shall be provided to start a chemical feeder, pump or motor application)

BRINE SYSTEM

The brine system shall include a plastic body eductor that is integral with the control valve. A flow control orifice shall be provided to control the brine tank refill flow rate for accurate brine measurement. The brine tank shall be constructed of polyethylene and include a tight fitting cover, brine well, overflow and salt platform. An air check assembly is provided to prevent drawing air into the system at the end of the brine cycle.

DISTRIBUTOR SYSTEM

The softener tanks shall be equipped with a hub and lateral distributor system constructed of ABS and PVC. The laterals will be slotted 0.010” to prevent media loss. The distributor shall be covered with pre-washed gravel support bed sized 1/8 x 1/16.

FLOW METERS

Flow meters shall be provided to initiate regeneration based on water use to increase salt efficiency and prevent hard water bypass during periods of high water use. An electronic meter housing shall be constructed with 30% glass filled Noryl using a polypropylene turbine impeller or paddle wheel. The accuracy shall be + or - 3% of reading using a Hall Effect switch. A pressure drop of 1.5 psi @30GPM and maximum water temperature shall be less than 100F.

Flow sensors 2-1/2” and above shall be highly repeatable and have open collector signal with a wide dynamic flow range of 0.1 to 6m/s. Electrical requirements shall consist of: Supply voltage 5 to 24 VDC, supply current <1.5 mA @ 3.3 to 6 VDC / < 20mA @ 6 to 24VDC. Output collector, sinking 10 mA max.  

OPTIONS

The following options are available to meet specific application requirements:

PRESSURE GAUGES AND SAMPLE VALVES.

Pressure gauges and sample valves can be provided as required. The standard pressure gauges are 2.5 inch diameter liquid filled with brass wetted parts and stainless steel case. The sample valves are ¼ inch PVC.

FLOW METERS

Stainless Steel body water meters are available to initiate regeneration based on water use to increase salt efficiency and prevent hard water bypass during periods of high water use. The water meters are available in 1 1/2 inch and 2” size and can be mounted on the valve or remote line mounting. The metered control system options include single softener immediate regeneration, single softener delayed regeneration, twin alternator or twin sequential.

BRINE RECLAIM SYSTEM

The water softener system shall include additional piping, valves and control features to recover usable brine discharge during the brine and rinse regeneration cycle. This will be diverted to the brine tank for reuse during the next regeneration. This feature shall provide a salt usage reduction of up to 25% and reduce waste water to drain.

The softener shall be equipped with an automatic brining system that utilizes a wet salt storage and brine measuring tank. The brine system shall include a non-corroding fiberglass or polyethylene tank and PVC eductor.  The brine valves shall be non–corrosive thermoplastic float operated or two switch floats for positive control and accurate brine measurement. Pumped brine and dilution stations shall be available from manufacturer for pit silo applications.

SKID MOUNTED, PRE-PIPIED & PRE-WIRED

The softener mineral tanks shall be skid mounted on a 4" or 6" channel carbon steel skid. The skid shall be cross-braced with 4" or 6" channel or angle iron with legs for an elevated skid. All steel surfaces shall be coated to the match exterior of softener tanks.  All interconnecting piping shall be the same material as the valve nest manifold piping, and shall be assembled to the fullest extent possible. The inlet and outlet isolation valve connections, brine and drain headers shall terminate inside the skid internal area. All piping shall be suitably supported and anchored to the skid. All electrical wiring shall be complete between the units, and the hydraulic or pneumatic tubing shall be installed as part of the skid package. The entire skid mounted system shall be fully tested as a unit by the manufacturers designing engineer before shipment.

ASME CODE VESSEL

ASME Code Section VIII, stamped and certified construction. Working pressure vessel ratings of 150psi shall be available on either non-code or ASME code constructed vessels. 

CUSTOM CONTROLS The control system can be designed to meet the application requirements. Typical options include electronic timers. The network controllers are field-configurable for all system types, easy to read LCD backlit display, network up to four control valves, demand recall progressive flow system, auxiliary inputs and outputs, easy access to diagnostics mode and remote signal start.

Specifications Subject to Change without notice.

INSTRUCTIONS

Three (3) complete sets of installation, operation and maintenance manuals shall be provided.

GUARANTEES

Attrition loss of mineral is guaranteed not to exceed 3% per year for a period of three (3) years. All mechanical and electrical equipment is guaranteed for eighteen (18) months from date of shipment or one (1) year from date of service against any defects in workmanship or material. Any part proving defective shall be replaced or repaired within this period at manufacturer’s option. The manufacturer guarantees that under actual operating conditions the mineral shall not be washed out of the system during the service run or backwashing period; and that the turbidity and color of the effluent by reason of passing through the softener system, shall not be greater than the incoming water; and that the underdrain system, gravel and minerals shall not become fouled, either with turbidity or by dirt, rust or scale from the softening system while operating as noted in manufacturer’s instructions.

 

 

 

 

Address: 7869 N. 73rd St. Milwaukee, WI 53223, Phone: 414.365.0787 Fax: 414.365.0248 Email: info@lakesidewater.com 

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