Not all reference points have to be standing still. An example of. a reference point that is moving is when you look out the window of a. car and notice that you are moving faster than the car next to you.
By his estimate, a typical job that includes replacing an old shower or tub with a custom shower pan, new wall tile, a glass surround and a custom glass door ranges in cost from about $4,000 to $5,000. Without the custom door, the price drops about $1,000.he next step up on the renewal scale is to replace an old tub or shower with a fiberglass or plastic insert that includes integrated wall panels. According to Paul Nygren, of Nygren Remodeling, Inc. , in Minneapolis, this type of job costs about $2,000 to $3,000.
Cost to Replace a Spa Ozonator: Ozonators for hot tubs cost $70-125. Cost to Replace a Spa Blower: Hot tub blowers cost $70-$110, and check valves are about $15. Cost to Replace a Hot Tub Cover: Spa covers cost $250-$450, depending on size and options. Cost to Replace a Spa Pack / Controls: Digital Spa Packs average $750. Control systems average $450. Cost to Replace Spa Jets: The cost to replace a spa jet varies from $20-$50 on average.