I need to calculate total dynamic head (TDH) for my swimming pool before sizing the pump, but the information on the Internet for friction loss and TDH seems to assume that there is only one pipe in the loop between the pool and the pump and return to the pool. I have 3 pipes in parallel from 2 skimmers and the main drain. Also 2 return pipes in parallel. How can I factor in the parallel pipes? Two pipes have the same area as one 2.8 pipe, and three pipes have the same area as one 3.5 pipe. Should I use those equivalent pipe sizes or what? Thanks in advance.
Honestly registering is fun but it's pretty much useless. My baby shower was in October I registered at JCPenny, Babies R Us, Target and Wal-Mart we placed where I was registered at on the invitations the we sent out. My baby shower turned out great we had 93 people to show up and I got a ton of gifts but out of all those gifts only 3 items were what I had registered for it turned out to be a total waste of time. I got 6 different brands of diapers some I've never heard of and multiples of everything else such as clothes and baby gear. I didnt think to register for medicines though so if you think your family will actually look at your registry then it'd be a good idea to put those on there. Good Luck!
Very few areas have any laws or codes in the United States that tells you what you MUST have in your own private home. That old adage, A man's home is HIS castle. Still holds true for a great many areas. And while I agree the government should stay out of our lives, particularly with what's required in our own homes, there is no reason that people shouldn't consider having good fire protection equipment. New Jersey's position, that another user mentioned, is a good example of a passive enforcement method that I am in favor of. You cannot sell a house without making sure there are fire extinguisher(s) involved. NFPA 10, The standard for fire extinguishers, 2007 edition states (in the appendix) for residential occupancies or single or multi-family dwellings F.5.1 Minimum Placement. A minimum of one portable fire extinguisher, with a minimum rating of 2-A:10-B:C, and meeting the general recommendations of Section F.1, should be provided per floor level of a living unit, with a maximum of 40 ft (12 m) of travel distance to the equipment. (The appendix of any NFPA standard is simply considered a recommended practice. But sometimes, certain states or municipalities adopt it as local code along with the rest of the standard.) Again, NJ is the only state that I am aware of where this is presently adhered to and it is only at the time of sale. Maybe more states will be following their lead?
It will depend on local building codes which vary even from town to town, unless there's a uniform state law on point. In NJ, the seller of a house has to supply a working fire extinguisher to the buyer upon closing.
