・ Basically, items are shipped on the same day if payment is received by 12:00 PM, but items dropped in a post box will be processed by 9:00 AM on weekends and holidays. ・ Support information will be provided after purchase if needed in "Mamushi's Flea Market Discussion". A glimmer of hope has pierced the darkness where the only option for a broken electromagnetic pump was to replace it with a new one, costing nearly 8,000 yen unless buying used. The success rate is surprisingly high, at 30-70%. Perfect repair is possible even for electromagnetic pumps manufactured over 10 years ago, as long as there is no internal disconnection or short circuit in the coil part. This part can repair: 1) When the ball wears out, becoming loose and weakening the pump function. For example, the discharge flow rate increased from 342 ml/min to 631 ml/min, nearly doubling the specifications. The change was achieved by simply replacing these two parts, restoring the performance to that of a new product. I will reiterate this point for the sake of caution, as this part may not be effective in some cases. There are various causes for electromagnetic pump failure. The spring and ball, which are the most important moving parts, and whether the inner cylinder expands smoothly. The red coil part is surprisingly often overlooked. I have repaired about 30 electromagnetic pumps, and 30-70% of them had deteriorated coil performance. If the red coil part is disconnected and doesn't work at all, this repair part will not be able to revive it. Many DIY enthusiasts are inexperienced, and it's common to find the spring disassembled in the wrong direction or missing altogether. Please be careful if you have purchased a used product. Place the ball on top of the spindle-shaped spring, and insert the head of the rectifier spring upside down. ※ Please read "Mamushi's Flea Market Discussion" for detailed information.