1.5 Cubic Ft. pH Water Filter Manual Backwash System TANK SIZE 10″x54″ Raises pH from as low as 5.5 up to a near-neutral level using naturally occurring calcium carbonate Convenient dome loading port allows for easy replenishment of media without removing the control head Designed for 2-4 bathrooms homes with 3-4 people and treats up to 3.2 GPM Uses Manual Backwash valve for efficient, user-friendly use + No electricity Needed Simple system connections & detailed instructions so most homeowners can install themselves! Acid neutralization is a must to prevent leaks, maintain fixtures, and ensure good health. Acidic water (water with a pH less than 7.0) can eat away at your plumbing and cause blue/green staining on your fixtures. Some also believe that water with a low pH can have adverse health effects. The pH system uses Calcite to neutralize the acid by dissolving and counteracting the acidity. In homes with pH less than 6.0, a blend of Calcite and Corosex is used, complimenting each other. The Corosex is more aggressive, providing the ability to raise very low pH levels, while the Calcite is slow-acting, counterbalancing the Corosex and preventing excessive pH rise. Note: Due to the nature of pH systems, some hardness is added to the water. Depending on existing hardness levels and pH level, a water softener after the pH system may be recommended. Since the media dissolves to neutralize the acid, regular replenishment is necessary, usually about once a year depending on water use, pH levels, and system size. With the dome loading port, you avoid the need to disconnect and remove the control head; simply unscrew the port and add media! Manual Backwash Valve: The backwash process simply forces water rapidly through the system in reverse direction, lifting the media and flushing accumulated particulates down the drain. It also prevents the media from solidifying and reducing efficiency. Shipping Details Continental U.S. Buyers pay the shipping price listed. Alaska, Hawaii, and A.P.O. addresses require prior contact for shipping quotes and availability BEFORE bidding. Only USPS will be used to these areas. If an item is refunded on free shipping, there will be a 25% restocking fee. Terms of Sale Returns must be made within 14 days of receiving the item. The item MUST BE UNUSED in order to receive a refund. Unused Items: We will accept returns on any unused and unopened items 14 days from the delivery date. Shipping and Handling charges are NON-REFUNDABLE, and Buyer is responsible for return shipping.