(A) Section UPC 104.5 Fees is amended to read as follows:
Permit fees will be derived from the City of Marshalltown Fee Schedule as adopted.
(B) Table UPC 104.5 Plumbing permit fees are deleted.
(C) Section UPC 407.3 Limitation of Hot Water Temperature for Public Lavatories is amended to read as follows:
Hot water delivered from public-use lavatories shall be limited to a maximum temperature of 120°F (49°C). The maximum temperature shall be regulated by one of the following means:
(1) A limiting device conforming to either ASSE 1070/ASME A112.1070/CSA B125.70, or
(2) A water heater conforming to ASSE 1084.
Tempering devices shall be installed at or as close as possible to the point of use.
(D) Section UPC 418.3 Location of floor drains is amended to read as follows:
Floor drains shall be installed in the following areas:
(1) Toilet rooms containing two or more water closets or a combination of one water closet and one urinal, except in a dwelling unit.
(2) Commercial kitchens and in accordance with Section 704.3.
(3) Laundry rooms in commercial buildings and common laundry facilities in multi-family dwelling buildings.
(4) Boiler rooms.
(5) Rooms containing a water heater.
(E) Section UPC 609.1 Installation is amended to read as follows:
Water piping shall be adequately supported in accordance with Table 313.3. Burred ends shall be reamed to the full bore of the pipe or tube. Changes in direction shall be made by the appropriate use of fittings, except that changes in direction in copper or copper alloy tubing shall be permitted to be made with bends, provided that such bends are made with bending equipment that does not deform or create a loss in the cross-sectional area of the tubing. Changes in direction are allowed with flexible pipe and tubing without fittings in accordance with the manufacturer's instructions. Provisions shall be made for expansion in hot water piping. Piping, equipment, appurtenances, and devices shall be installed in a workmanlike manner in accordance with the provisions and intent of the code. Building supply yard piping shall be not less than 12 inches (305 mm) below the average local frost depth. The cover shall be not less than 12 inches (305 mm) below finish grade. Water service piping shall have no less than five feet of soil cover.
(F) Section UPC 701.2 Drainage Piping is amended to read as follows:
Materials for drainage piping shall be in accordance with one of the referenced standards in Table 701.2 except that:
(1) No galvanized wrought-iron or galvanized steel pipe shall be used underground and shall be kept not less than 6 inches (152 mm) aboveground.
(2) ABS and PVC DWV piping installations shall be installed in accordance with applicable standards referenced in Table 701.2 and Chapter 14 "Firestop Protection." Except for individual single-family dwelling units, materials exposed within ducts or plenums shall have a flame-spread index of not more than 25 and a smoke-developed index of not more than 50, where tested in accordance with ASTM E84 or UL 723. Plastic piping installed in plenums shall be tested in accordance with all requirements of ASTM E84 or UL 723. Mounting methods, supports, and sample sizes of materials for testing that are not specified in ASTM E84 or UL 723 shall be prohibited.
(3) No vitrified clay pipe or fittings shall be used aboveground or where pressurized by a pump or ejector. They shall be kept not less than 12 inches (305 mm) belowground.
(4) Copper or copper alloy tubes for drainage and vent piping shall have a weight of not less than that of copper or copper alloy drainage tube type DWV.
(5) Stainless steel 304 pipe and fittings shall not be installed underground and shall be kept not less than 6 inches (152 mm) aboveground.
(6) Cast-iron soil pipe and fittings and the stainless steel couplings used to join these products shall be listed and tested in accordance with standards referenced in Table 701.2. Such pipe and fittings shall be marked with the country of origin, manufacturer's name or registered trademark as defined in the product standards, the third-party certifier's mark, and the class of the pipe or fitting
(7) The use of SDR 23.5 is an acceptable material for exterior building sewers.
(G) Section UPC 717.1.1 Size of drainage piping is added to read as follows:
The main building drain shall be a minimum four-inch diameter.
(H) Section UPC 718.3 Protection from Damage is amended to read as follows:
No building sewer or other drainage piping or part thereof, which is constructed of materials other than those approved for use under or within a building, shall be installed under or within 2 feet (610 mm) of a building or structure, or part thereof, nor less than 1 foot (305 mm) below the surface of the ground. The provisions of this subsection include structures such as porches and steps, whether covered or uncovered; breezeways; roofed porte cochere; roofed patios; carports; covered walks; covered driveways; and similar structures or appurtenances. Building sewers less than 42 inches shall be cast iron pipe or protected with an engineered system to prevent damage from freezing and frost heave.
(I) Section UPC 1014.1 General is amended to read as follows:
Where it is determined by the Authority Having Jurisdiction that waste pretreatment is required, an approved type of grease interceptor(s) shall comply with ASME A112.14.3, ASME A112.14.4, CSA B481, PDI G-101, or PDI G-102, and sized in accordance with Section 1014.2.1 or Section 1014.3.6, shall be installed in accordance with the manufacturer's installation instructions to receive the drainage from fixtures or equipment that produce grease-laden waste. Grease-laden waste fixtures shall include, but not be limited to, sinks and drains, such as floor drains, floor sinks, and other fixtures or equipment in serving establishments, such as restaurants, cafes, lunch counters, cafeterias, bars and clubs, hotels, hospitals, sanitariums, factory or school kitchens, or other establishments where grease is introduced into the drainage or sewage system in quantities that can affect line stoppage or hinder sewage treatment or private sewage disposal systems. A combination of hydromechanical, gravity grease interceptors, and engineered systems shall be allowed to meet this code and other applicable requirements of the Authority Having Jurisdiction where space or existing physical constraints of existing buildings necessitate such installations. A grease interceptor shall not be required for individual dwelling units or private living quarters. Water closets, urinals, and other plumbing fixtures conveying human waste shall not drain into or through the grease interceptor.
Notwithstanding provisions of Section 1014.1, regulations of Fat Oil and Grease (FOG) and sizing FOG removal devices where connected to the Wastewater Reclamation Authority (WRA) system shall be in accordance with WRA regulations for the regulation of industrial wastewater and commercial wastewater.
(J) Section UPC 1101.12.2.2.2 Combined system is deleted.
(K) Section UPC 1208.6.4.5 Corrugated Stainless Steel Tubing is amended to read as follows:
Only CCST with an Arc Resistant Jacket or Covering System listed in accordance with ANSI LC-1 (Optional Section 5.16)/CSA 6.26-2016 shall be installed in accordance with the terms of its approval, the condition of listing, the manufacturer's instructions, and this code including electrical bonding requirements in Section 1211.2. CCST shall not be used for through wall penetrations from the point of delivery of the gas supply to the inside of the structure. CCST shall not be installed in locations where subject to physical damage unless protected in an approved manner.
(Ord. 15071, passed 9-25-2023)