A hot water heater can produce a rotten egg odor when it is turned on. To determine if the odor is from the hot water heater, go the a sink closest to the water heater and fill a glass with water from the hot water faucet and a second glass from the cold water faucet and smell them.
Typical costs: 1  A cable modem costs $40-$90. For example, Circuit City, an online-only retailer, sells the standalone Motorola SURFboard SB5105 cable modem for $60. 2  Some cable modems are combination devices with routers, which create a wireless network. These devices cost $80-$200. The more expensive units allow for faster rates of transfer. Amazon, for example, sells the Motorola SURFboard SBG900 DOCSIS 2.0 cable modem and router combo for $120.
Best Value: Netgear N300 Wi-Fi DOCSIS 3.0 Cable Modem Router (C3000) Whether youâre in the market for a modem, a router, or a modem/router combo, you really donât have to spend a lot to get reliable, high-speed Internet performance. For the sub-$100 modem/router price range, Netgear N300 Modem Router (C3000) is one of the best products youâll find.