To the Editors: Once again. I have prepared a post-World Championship analysis of the many problems related to the current World Championship regulations. My analyses this year and last year reveal that the current system is beset with unacceptable problems that negatively affect all countries. A return to the 2005-2021 system with a mid-cycle Open Team World Championship seems the ea... https://poolsproductscanadas.shop/product-category/hayward-hcp-4000-series-parts/